November 4, 2019 Edit
The question of where Peter was on the night of Mikkel’s disappearance is revealed. He did go to Benni the transgender sex worker but remained in his car, eventually driving off and instead, went to the bunker. He sat down and recited the Serenity Prayer and was then shocked to see a flash of light on the wall and a young boy’s body fall through, with burned eyes. He attempted CPR but realized the boy was dead. He found his school ID on him- Mads Nielsen, dated 28 October 1986. He called Tronte to come, who sobbed in disbelief, seeing his son's body after 33 years. The elderly Claudia then walked in, telling them they must take Mads’ body to where he needs to be found.
November 12, 2019Edit
After being turned away by Jonas, Martha returns to Bartosz and apologizes to him, saying she does not recognize herself since Mikkel disappeared. He tells her it doesn't matter and hugs her but has an angry look in his eyes.
Charlotte visits the nursing home. The nurse informs her that Helge has still not returned. He has never been missing for this long before. She asks if Ulrich has been by again, but the nurse says no. Helge wakes up in the elevated watchtower.
Jonas visits his grandmother, Ines and asks her if she knew about the boy from the future. Ines becomes uncomfortable, Jonas realizes she did know. She retrieves Michael's suicide note and gives it to Jonas, who can't understand how she has it when he burned it. He asks her how long she has known about it? She says since way back. She thought he might be disturbed or have an overactive imagination and been through a terrible trauma. She didn't believe him when he first said he came from the future. She never thought he would take his own life. Jonas becomes angry:
Ines tells him she believes that no matter how strange things seem, everything happens for a reason. What's past is past. You should live in the here and now. Who knows what the future will bring? Jonas says he just wants things to go back to normal.
Mikkel performs the same magic trick for Ines that he performed in 2019, but says he really wishes he could wake up. Ines likens his situation to Master Zhuang's paradox: a person dreamed he was a butterfly, but on waking, could not be sure whether he was a person dreaming of being a butterfly or a butterfly dreaming of being a person. She asks Mikkel whether he is a person or a butterfly: he says he might be both.
Ulrich Nielsen is in the custody of the Winden Police. He realizes the person interrogating him is none other than his nemesis: Egon Tiedemann. He quotes the song he listened to in 1986 that Egon did not like: "My only aim is to take many lives, the more, the better I feel." Egon asks him whether he is a satanist. He asks him why he killed the children? Ulrich says he didn't kill them, he tried to save them. If he lets him, he can still save them. As he is taken away he mocks Egon, asking whether he has started drinking yet or will that happen after his wife leaves him? He cries out to let him go so he can find his son. Later Egon and some policemen ask him where Helge is? When he doesn't answer they begin beating him.
Bartosz confronts Jonas outside the school, telling him he waited for him on Thursday. He reminds him of how he covered for him, not telling anyone he was in the nuthouse. Jonas apologizes. Bartosz tells him that Martha told him he kissed her. Jonas tries to explain but Bartosz gets angry and shoves him to the ground, saying he is just like his father, at which Jonas lunges at him, and they wrestle on the ground. Martha sees them and yells at them. Bartosz tells Jonas to never come back there. Jonas walks away, his face bloodied.
He goes home. Hannah asks him what happened to him? He says he got in a fight but it doesn't matter who with. He hugs her and tells her everything will work out. He then says he left something at school and heads for the caves.
The Stranger returns to the clockmaker's shop and asks H.G. Tannhaus if he has repaired his machine. Tannhaus shows him he has two machines: the one the Stranger brought is how the device looks in the future. He built the same device many years earlier. He retrieves Ulrich's smartphone, which sends a signal to the device, causing it to move. Otherwise, it cannot move. He says it's not just the past that influences the future, the future influences the past, for if The Stranger had not shown him how the device looks in the future, he would not have been able to build it. He points out openings that he does not know what their purpose is. The Stranger places a vial of radioactive Cesium-137 he obtained from the barrels from the power plant and inserts it there. Tannhaus says this will create an electromagnetic pulse that will turn into a black hole, as must have happened during the nuclear power plant incident. The Stranger asks why Tannhaus decided to help him. Tannhaus is unsure how people make decisions or what made him decide to. He asks him what the future is like? The Stranger says tomorrow will be different than today.
Charlotte calls Peter and asks him when his father, Helge, was kidnapped as a child: 1953- 2 times 33 years ago. She reviews microfilm of 1953 newspaper articles about Helge Doppler's kidnapping. She is shocked when she sees a photo of the suspect- Ulrich, with the headline, "Is This Man a Child Murderer?"
Helge sees an old man at the cabin. The elder Helge tells him he has to stop, that Noah is using him, and all his promises are lies. Noah is not the chosen one. He does not want to save the world from evil- he is evil. He tells him not to make the same mistakes he made. The middle-aged Helge, distressed by this, runs to his car and drives off.
In the bunker, Tronte tells Peter that everything Claudia has said would happen has happened, as is written in the notebook: Mads will live again. Peter is skeptical, asking why half the pages of the notebook have been torn out. Tronte tells him that after today, it will all be new.
The middle-aged Helge asks Noah, if there is no God, why do we believe in a lie? He says people prefer to believe a lie than pain. He recalls that when he was a boy, a stranger visited, with sadness in his eyes. He took the room next to his and would sometimes talk in his sleep until one night he said: "Nothing is in vain." It was not until years later that he understood this to mean that none of the horrible things that happen to us are in vain. Challenges make us who we are, sadness gives us strength. Helge's pain defines who he is but has no power over him. Helge- reassured- asks who is next, and Noah replies, Jonas Kahnwald.
Mikkel sits on his bed, dressed, ready to be discharged to a children's home. Ines tells Selma Ahrens, the caseworker, that she wants to adopt him and take provisional custody of him. She cares about him. He trusts her and is the only person he will allow to get close to him.
The young Charlotte Doppler is sketching dead birds. Jonas comes past and asks her the year: 1986. She asks what he is doing. He replies that he is bringing someone back from the dead. She asks if he can bring the dead birds back to life, but he says it is too late, the fact that they will die cannot be changed. She tells him he is crazy.
Jonas walks through the hospital and enters Mikkel's room. Noah the priest is sitting beside the bed. Jonas asks him who he is. Helge comes from behind and grabs him. He is taken to the brightly coloured torture room. The Stranger looks in on him and says: "there's no need to be afraid." He asks him why he locked him in there? He tells him he didn't, Noah did. He tells him that he is the guinea pig for a prototype time machine, which doesn't quite work. Jonas asks the Stranger who he is? "You don't know?" he says. He asks him how the letter he burned still exists? He tells him he will carry that letter for 33 years before he passes it on- to himself. For he (The Stranger) is Jonas Kahnwald. He sent that letter to Jonas–to himself. Everything that he is experiencing, he has already experienced. He burned the letter just like he did, but got it back from their grandmother. He already had this conversation but was on the other side then. We think we have free will but we don't. We follow the same path, again and again. Jonas, in tears, says this is crazy. He can decide to let him out. But the Stranger tells him that if he were to let him out he won't become who he is today. If he changes the past he will change the present and he won't be able to destroy the wormhole. Jonas cries that he wants to bring Mikkel back and for things to go back to normal. The Stranger then leaves.
The middle-aged Helge drives in the rain but a car hits his, side on. The windscreen is shattered. A bloody Helge gets out of his car and limps toward the other car. He sees an old man in the driver's seat- his old self. This is the accident that Charlotte asked Peter about. The police arrive. Old Helge Doppler is dead.
In his car, Noah tells Bartosz that everything is about to begin again. Noah says that the older Jonas will attempt to destroy the wormhole but doesn't realise that in the process, he will be the one to trigger its existence. He claims that Claudia lied to Jonas; as in he is just a pawn in the war to control time travel. He further explains that there are two forces fighting to control time travel- light and shadow. He professes that he and his followers belong to the light. They must make certain every step is repeated exactly as it was before. He lies that Claudia is inhumane and belongs to the shadow, and Jonas is her puppet. He hands Bartosz his triquetra notebook and says he must be strong, to free humanity from its immaturity and pain. Bartosz answers willingly.
Mixed Years Edit
Adult Jonas crawls through the caves, opens the door, and enters the intersection. He activated the apparatus using the Ulrich's handphone. Gears start turning and lightning starts being produced. Adult Jonas sits down and notices a hallucination of his father covered in a black liquid. A spherical wormhole is being formed from inches above
In 1986, the adoption process is complete. Ines legally changed Mikkel's name to "Michael Kahnwald". They arrive at the Kahnwald family home, and Michael starts crying tears of joy. The two hug each other and begin their new lives. In 2019, Charlotte meets up with Peter in the bunker. Katharina, sitting in Mikkel's room as usual, tries to call Ulrich. Lights start flickering and the ground starts rumbling in all 3 periods. Glitches start to occur as well, such as a Raider commercial playing on the TV in 2019. Aleksander and Regina Tiedemann exits the car and takes a gaping sight of a massive wormhole looming above the forest, slowly closing the cave wormhole.
In 1953, a bloodied young Helge Doppler crouches in the bunker with fear. In 1986, Jonas Kahnwald is in the bunker, now a decorated torture room. A human size wormhole opens between them and they can see each other. They reach out to touch each other. As they do so, they were transported to different years.
November 13, 1986 Edit
Young Helge wakes up in the morning. He surveys the room that he was in, the bunker. He spots the chair in the centre, and touches the metal bind.
Jonas is still in the bunker but the wallpaper has been replaced by weapons and a wall with photos of people connected by string. He takes a gander at the four interconnected families, and a string that connects him to the stranger, his adult self. He goes outside to a war zone, staring at signs saying "Caution, Radiation, Restricted area." Soldiers approach him and tell him to put his hands up and lie on the ground. All wear face masks. He asks where he is, what year is it? A futuristic war plane flies overhead. A woman soldier, gun in hand, tells him "Welcome to the future" and shoves the gun to his face, knocking him out.
- Tannhaus: That one's yours, and this one's mine. I built it many years ago. It's the same device, but in a different condition, you see. It's as if one could look at the beginning and end of something at the same time.
- Tannhaus: It's not just the past that influences the future. The future also influences the past. You see, if you hadn't shown me what the device looks like in the future, I wouldn't have been able to build it. A paradox.
- The Stranger: Why did you decide to help me after all?
Tannhaus: Why? That's a big word. Why do we decide for one thing and against another? But does it matter whether the decision is based upon the consequence of a series of causal links? Or whether it stems from an undefined feeling inside me? That perhaps everything in my life boils down to this one moment? That I'm part of a puzzle, one that I can neither understand nor influence? Will you tell me what the future's like?
The Stranger: I'm hoping that by tomorrow, it'll already be different from today.
- Helge: But if there is no God, then why do we believe in a lie?
Noah: Because we prefer any lie to the pain. Years ago, I was still a little boy, a stranger came to us. He looked as if he'd been in the war. Didn't talk much. There was this sadness in his eyes, the kind you sometimes see in those who want to die, but life won't let them. He took a room in our house, the bedroom right next to mine. And sometimes I heard him talk in his sleep. Confused words. But one night, he was suddenly very clear. He stood in the hallway, his eyes wide open, and said "Nothing is in vain. Not a single breath, not a single step, not a single word. Not pain. An eternal miracle of the One." I didn't understand any of his words. Only years later, when I felt the pain, did I understand what he meant, that none of the horrible things that befall us should be in vain, that they make us what we are, that they give us our strength. Your pain made you who you are, Helge, but it no longer has power over you.
- Jonas: What day is it today?
Charlotte: The 12th.
Jonas: What year?
Charlotte: '86. Are you from here?
Jonas: (shakes his head)
Charlotte: What are you doing here?
Jonas: Bringing someone back from the dead.
Charlotte: How does that work?
Jonas: It's very hard to explain.
Charlotte: Can you bring these back?
Jonas: No, you have to find them when they're younger.
Charlotte: But then they're not dead yet.
Jonas: That doesn't change the fact that they will die.
Charlotte: You're crazy.
- Jonas: Who's Noah? Where am I? What is this?
The Stranger: This is a kind of prototype of a time machine. You're the guinea pig. The passage in the cave lies directly under this bunker. If opened, the energy flows through this room. But it needs to be increased. No DeLorean. No hissing or steam. The first time machine is a bunker with four walls. But it still doesn't quite work.
- Jonas: Let me out of here!
The Stranger: I can't. It's the only way for things to be normal again.
Jonas: Who are you?
The Stranger: You don't know? The letter. You burned it. And yet it still exists. You'll carry that letter for almost 33 years before you pass it on—to yourself. I am you. My name is Jonas Kahnwald. I sent the letter to you. Or should I say, to me.
- The Stranger: I can't let you out because then you won't become what I am today; if I now change my past, I will change who I am right now, and then I won't be able to destroy the hole once and for all. Why did you kiss Martha? We're not free in what we do, because we're not free in what we want. - We can't overcome what's deep within us.
- Noah: Everything is about to begin. The older Jonas will destroy the hole, but he doesn't realize that he will be the one to trigger its existence—a paradox. The cesium in his useless machine< won't destroy the hole forever—it's what creates it in the first place. He thinks he's the savior, but Claudia lied to him. Most people are nothing but pawns on a chessboard, led by an unknown hand. Their lives exist only to be sacrificed for a higher goal. Jonas, Mikkel, the children, they're nothing but unfortunate, yet necessary chess moves in an eternal war between good and evil.
There are two groups out there fighting to control time travel. Light and shadow. We belong to the light. Don't forget that, even though some of what we do is of a dark nature. But no victory is ever won without sacrifice. As long as we're in this time loop, we who know have to make sure that every step will be repeated exactly as it was before, no matter how inhumane it seems to us, no matter what sacrifices it demands of us. But believe me, the others are the ones who are truly inhumane. They have lost all humanity. They belong to the shadow.
Your grandmother, Claudia, belongs to the shadow. Never trust her, no matter what she says. Jonas trusted her before and he will trust her again. Jonas thinks he will change everything, but he's just her puppet. He doesn't deserve any better. Time is an infinite field. Millions and millions of interlocking wheels. We have to be patient to be victorious. But our time will come. We will free humanity, from its immaturity, from its pain. But you must be strong. Can you do that?
GoofsEditOn the morning of November 12th after Jonas throws his medicine in the trash, he looks to his desk and sees the orb light, Geiger counter, and the suicide note.  However, he previously burned the suicide note on November 9th.
. Ines gives it to him again later the day of November 12th, though he says impossible as he burned it. 
- Alpha and omega are the first and last letters of the Greek alphabet, and a title of Christ and God in the Book of Revelation. It can be interpreted to mean The Beginning and the End (with the show based on there being no beginning or end)
- Even though the 3 time periods are separated by 33 years, people can move rapidly between them and events seem to happen simultaneously. So Mads can be killed in 1986 but be sent to 2019 and appear to have been dead a few hours. Erik and Yasin can be killed in 2019 but sent to 1953. Gretchen can disappear in 1953 but be found unchanged in 1986. Mikkel and Ulrich can hear each other 33 years apart. (Episode 3). Helge and Jonas can touch each other, though separated by 33 years.
- The reason Tronte was out when Mikkel disappeared was Peter had asked him to come to see Mads but he didn't want to tell Jana he was dead.
- Helge wakes up in the same watchtower that Jonas woke up in (episode 7), He appears to be in 1986.
- Ulrich tries to get under Egon's skin by reciting the lyrics from the song he knows he hates but this makes Egon believe he is a satanist and his reasons for trying to kill Helge make him believe he is a lunatic.
- The suicide note Ines has is fresh. The copy the Stranger gave Jonas is worn and old. He has kept it for 33 years, passing it on to younger Jonas.
- We see Tannhaus did have another machine (episode 8) and built one for Claudia in 1953 (episode 9). It relies on the smartphone Ulrich took from 2019 to 1953. The stranger's version guides him how to build the first one. The past influences the future, the future influences the past.
- Jonas still tries to return Mikkel to 2019, even though it will erase his existence (like his father he is prepared to end his existence). Before doing so he cuts ties with Martha and hugs his mother, telling her everything will work out.
- We finally find out that The Stranger is future Jonas Kahnwald. He has been guiding him throughout, ensuring he does what is needed.
- Another attempt is made to murder Helge after Ulrich failed. This time the elderly Helge tries to kill his younger self to stop him but again does not succeed.
- Ines adopts Mikkel who will grow up to be Michael Kahnwald.
- The image of young Helge Doppler waking up on the floor of the torture room is the same as we saw at the start of episode 7.
- Noah appears to be grooming Bartozs to replace Helge. It cannot be a coincidence that they are both sons of the head of the power plant.
- Older Jonas believes he can close the wormhole despite telling younger Jonas that we don't have free will.
Recurring themes Edit
- The image of Jonas and Helge reaching their fingers towards each other through the wormhole is reminiscent of God and Adam reaching out to touch in The Creation of Adam, a fresco painting by Michelangelo which illustrates the Biblical creation narrative from the Book of Genesis in which God gives life to Adam, the first man. (Christianity)
- The title Alpha and Omega comes from the phrase "I am the Alpha and Omega," an appellation of Jesus in the Book of Revelation. When it appears, it is clarified with the additional phrase, "the beginning and the end." (Christianity)
- Stephan Kampwirth as Peter Doppler
- Valentin Oppermann as Mads Nielsen
- Walter Kreye as Tronte Nielsen
- Lisa Kreuzer as Claudia Tiedemann
- Louis Hofmann as Jonas Kahnwald
- Daan Lennard Liebrenz as Mikkel Nielsen
- Lisa Vicari as Martha Nielsen
- Paul Lux as Bartosz Tiedemann
- Karoline Eichhorn as Charlotte Doppler
- Hermann Beyer as Helge Doppler
- Angela Winkler as Ines Kahnwald
- Anne Ratte-Polle as Ines Kahnwald 1986
- Oliver Masucci as Ulrich Nielsen
- Sebastian Hülk as Egon Tiedemann 1953
- Christian Steyer as H.G. Tannhaus 1986
- Andreas Pietschmann as The Stranger
- Peter Schneider as Helge Doppler 1986
- Maja Schöne as Hannah Kahnwald
- Mark Waschke as Noah
- Jördis Triebel as Katharina Nielsen
- Stephanie Amarell as Charlotte Doppler 1986
- Christian Pätzold as Egon Tiedemann 1986
- Julika Jenkins as Claudia Tiedemann 1986
- Arnd Klawitter as H.G. Tannhaus 1953
- Anatole Taubman as Bernd Doppler 1953
- Cordelia Wege as Greta Doppler 1953
- Antje Traue as Agnes Nielsen
- Luise Heyer as Doris Tiedemann
- Tatja Seibt as Jana Nielsen
- Moritz Jahn as Magnus Nielsen
- Gina Alice Stiebitz as Franziska Doppler
- Peter Benedict as Aleksander Tiedemann
- Deborah Kaufmann as Regina Tiedemann
- Tom Philipp as Helge Doppler 1953
- Lea Van Acken as Girl from the future
- Florian Panzner as Daniel Kahnwald
- Sebastian Rudolph as Michael Kahnwald
- Anton Rubtsov as Benni/Bernadette
- Lena Dörrie as Nurse Clara Schrage
- Barbara Philipp as Caseworker Selma Ahrens
- → See 77 images from Alpha and Omega at Images from Alpha and Omega.