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"Lost and Found" is the fifth episode of Season 2 of Dark. It premiered on June 21, 2019, and is the 15th episode overall.


In 1987, Ulrich seizes an opportunity. The kids return to the cave with the time machine, and Jonas learns of a loophole that could change the future.


June 25, 2020[]

The older Jonas Kahnwald and Martha Nielsen are making love, but mysterious black strands form veins in her abdomen, bursting out of her navel. Jonas then awakens from this nightmare, panting.  

June 25, 1921[]

The younger Jonas awakens in a strange room and is startled to find Adam sitting in a chair observing him. Adam tells him that people are repelled by those most similar to themselves. Jonas replies that he simply wants to know how to get home. Adam tells him to get dressed. His clothes have been laundered and neatly folded.

2 days until the apocalypse (June 25, 2020)[]

Two days until the apocalypse, Katharina Nielsen is looking at the school photo with Mikkel in it. Her other children Martha and Magnus come downstairs. Katharina tells them that there is something they need to see but they say they have to go. Martha lashes out at her, demanding to know why all of a sudden she wants to speak to them when she has ignored them for months. Katharina attempts to stroke Martha but she rebuffs her and says they no longer need to talk. They both leave.

Aleksander Tiedemann is on the phone asking why Clausen is so interested in the power plant and why he is really there. Aleksander's wife Regina enters and announces that their son Bartosz is missing and his bed was not slept in. Aleksander thinks he must have gotten back together with Martha but Regina says no one is answering there. She asks Aleksander to tell her everything is okay, which he tells her—unconvincingly.

June 25, 1987[]

Claudia Tiedemann looks at the newspaper article concerning the death of her father Egon on 26 June, 1987 (the next day). Her secretary Jasmin Trewen comes in to remind her that the French delegation is waiting for their meeting, but Claudia tells her to reschedule and leaves.

June 25, 1921[]

Jonas asks Adam why he's there. Adam tells him a person lives three lives: "The first ends with the loss of naïveté, the second with the loss of innocence, and the third with the loss of life itself." He will turn into him. Jonas shouts he doesn't have time for this. He must return to his time as he has seen all the graves of his loved ones. Adam tells him he has plenty of time since it is 1921—strictly speaking, he has ninety-nine years.

June 25, 1987[]

At the psychiatric facility, Ulrich looks at the photo of Mikkel that Egon gave him, as a nurse enters with a snack. Ulrich comes from behind him and smashes a bowl over his head, knocking him unconscious. He steals his keycard which he uses to unlock the door and leave.

Claudia goes to visit Egon at his apartment. He tells her it is a long time since she visited him. He tells her he is proud of all her accomplishments, and that her mother would be too. Claudia becomes emotional. She gets up to leave, telling him he should move in with her and Regina, so he would not be so alone, suggesting tomorrow. This surprises Egon, who says she is acting as though he is inches from death.

June 25, 2020[]

Hannah is looking through old photos when Katharina arrives looking for Jonas. Hannah tells her he has disappeared. Katharina asks how she can go back in time to see Mikkel, as Hannah did. Hannah says that Jonas has a time machine but has taken it with him. Katharina notices pictures of Michael and remarks how he was always right in front of her. She then accuses Hannah of having slept with both her husband and her son. Always wanting everything that was hers, like a parasite. She asks if Ulrich ever told Hannah he loved her, as he would always choose his family over her.

They are interrupted by a knock on the door. It is Clausen, who has come after Hannah was not home for their appointment yesterday. He finds it hard to believe a woman whose son is missing would miss that. He is surprised to see Katharina there. He shows her the sketch of the Stranger and asks if she has ever seen him. She says she has not and, taking a long look at Hannah, leaves. He then asks Hannah, who also denies recognizing him.

The older Jonas breaks into the empty Nielsen house and walks into Martha's room. He sits on her bed and places the St. Christopher medal on it.

June 25, 1921[]

Jonas asks Adam whether he knows everything that will happen. Adam says he knows of wars and scientific discoveries and what investments to make, but he does not know what other people will do. The younger Jonas asks him if the future can be changed. Adam replies that it took him 66 years to discover a way to leave this hell.

June 25, 2020[]

Clausen tells Hannah that he doesn't believe anyone in town is telling the truth; everyone is hiding something. He just isn't sure whether they are hiding the same thing or all have their own secrets. He asks if Aleksander Tiedemann is still paying her, even though she is no longer his physiotherapist. She says that Aleksander helps out with money because her son has disappeared. Clausen looks at an old picture of Ulrich, Katharina and Hannah as teenagers and says it is remarkable that Katharina appears so understanding of her affair.

Jonas then meets Charlotte Doppler in the bunker, who asks him who Noah is. Jonas says he is a traveler and Adam's puppet—who killed Mads Nielsen, Erik Obendorf, and Yasin Friese. Charlotte asks him if he knows who her parents are. He says he does not, but that he knew H.G. Tannhaus, her grandfather. Charlotte admits that Tannhaus was not her real grandfather, even though he raised her. She asks if he was also a traveler but Jonas says he was just a pawn, like everyone else. Claudia used him, just like she had used Jonas, Peter Doppler, and the others, to have him build the time machine. He opens the machine to show Charlotte. She tells him he knows what will happen in the future, which he affirms.

The teenagers return to the Winden Caves and are observed by Noah. Bartosz is still tied up there from the day before. They ask him what is going on. He says he cannot tell them and even if he did, they wouldn't believe him. Franziska Doppler tells him that the human body can survive three days without nourishment and they all prepare to leave. Finally, he tells them it is a time machine. Magnus doesn't believe it, but Martha tells Bartosz to show them how it works. Bartosz says he needs a phone. Martha hands him hers. This activates the device.

June 25, 1987[]

Claudia goes to visit Bernd Doppler at his palatial home and says she has checked the data and found it to be normal, so what really happened to cause the incident at the power plant? He shoves a binder across the table to her, saying he knew she would refuse to let it go; the binder contains the full results. She looks through it and says the values make no sense. He replies that the tests always came back the same, matching calculations of Englert, Brout, and Higgs in 1964. Claudia knows it as the God Particle: the particle that gives all things the mass they have. She says this is sensational and such a discovery should be made available to everyone. Doppler, however, tells her that it is sometimes better to let sleeping dogs lie. The nuclear plant is his only legacy. He wants his name and the plant kept secret, at least until his death.

Ulrich makes it to the Kahnwald home and sees Mikkel sitting outside. Mikkel sees him and asks if he is all right, but Ulrich is overcome with emotion.

At the hospital, Ines Kahnwald opens up the medication cupboard, looks around, and, seeing no one watching, takes some pills. She puts them in her pocket. Another nurse walks out and sees her with the cupboard open. She pretends she has to take more Iodine. She asks Ines whether she has heard about the supposed child murderer who escaped from the asylum.

Mikkel brings Ulrich a glass of juice and tells Ulrich he looks familiar. Ulrich says he has waited thirty-three years for this moment. He turns his glass over and repeats Mikkel's words, "The question isn't how; it is when," ("Secrets") asking him whether he recalls this. Mikkel nods and they hug each other. Ulrich weeps while Mikkel calls him "Papa".

June 25, 1921[]

Jonas asks Adam about Sic Mundus and the new world, asking if they are a religion. Adam says they are the opposite of that. They are the enemy of God, having declared war on time. They are creating a new world without time and without God. Adam says the God mankind has prayed to is nothing but time itself. Time is not compassionate, our lives trickle away and death is inevitable.

June 25, 2020[]

Charlotte returns to the clockmaker's shop and finds a picture of her as a child with Tannhaus and the blueprints to the time machine. The door opens. Noah enters and introduces himself. Charlotte says that she knows who he is and that he has killed the children. He tells her he hopes she will one day understand that he is only acting to try to put a stop to everything once and for all, so she won't be taken from him again like her mother was. He shows a photo of him with her as a baby, saying she had been premature but had a strong will to live. He tells her that her mother had taken the picture and he had promised to bring Charlotte back. He had been searching for her but she had been there the whole time—and Adam knew. He says the apocalypse is going to happen in two days, and he knows that he must end Adam so that everyone can live, not just those in the bunker. Charlotte asks him who her mother was. Noah says she loved her very much, and still loves her, then leaves, causing Charlotte to burst into tears.

June 25, 1987[]

The teenagers emerge from the cave and realize the landscape is different, the chair is missing. Bartosz says he didn't believe it at first either, but Noah told him what would happen before they happened: Martha would kiss Jonas, his mother would get cancer, Jonas would disappear but he will return. Franziska says her younger sister Elisabeth knows Noah (after they met in "Double Lives"). Magnus scoffs and leaves and the others follow. Bartosz asks Martha if she trusts him. She doesn't answer and goes to join the others.

Ines returns home, looking for Michael, but there is no sign of him. She sees the door ajar, and two cups on the table. She calls Egon, saying she is worried the man who broke out of the asylum might be involved. Egon says he will notify the station and will come by to pick her up, as he has an idea where they might be headed.

Mikkel and Ulrich run through the forest as police cars arrive, sirens wailing. They reach the entrance to the cave just as the police do, with Egon and Ines close behind. The police fire warning shots and tell Ulrich to let go of the boy. He tries to tell them he is his son. He lets him go, vowing to come back and take him home, as lnes runs to him and hugs him. He is more focused on his father. Ulrich tells Egon it is all his fault and next time he will kill him.

June 25, 1921[]

Adam says that Mikkel, Michael, their father, was nothing but a small part of a giant knot from which there is no escape. Jonas asks him if he has already had this conversation. Yes, he has asked that very question and wondered how he could ever say the words that his older self said to him and he could not understand how he could ever want what he wanted. But sixty-six years later he does. He tells Jonas there is a way out of this senseless futility. Jonas asks him why nothing ever changes. Adam tells him he couldn't become who he is without being who Jonas is first.

June 25, 1987[]

Claudia meets with a technician in her office and asks him to test a sample in secret. He asks what it is, and she replies that if it is what she thinks it is, it'll change their understanding of the world forever.

The kids emerge from the forest and come to the bus stop. Posters advertise a 1987 concert. Police cars drive past, containing Ulrich, who recognizes his children and tells the police to stop but they drive on. Bartosz asks if they believe him now.

June 25, 2020[]

The older Jonas returns home. He asks his mother whether she ever loved his father. He tells her he knows of her affair with Ulrich. He asks who she would choose: Ulrich or Papa. He tells her he thought she was the only person he could trust. She admits that she messed everything up and Jonas says coldly that perhaps she has always done that. He tells her she needs no one, just herself.

At the cave, Martha looks at Bartosz before walking off with the others.

June 25, 1987[]

Ines carries Mikkel home. Ulrich is returned to the asylum, drugged and restrained. She makes him hot chocolate and adds contents of medication into it.

June 25, 2020[]

Martha returns home and finds the St. Christopher medal on her bed.

June 25, 1921[]

Adam shows Jonas a God Particle that was created by their group, that will send him to the day he chooses to travel to and break the thirty-three-year cycle. Jonas now understands why he is there, to stop the apocalypse from happening by stopping its beginning. Adam says the question is when is the beginning and what sacrifice must be made. Jonas tells him the day before his father committed suicide, June 20, 2019, was when everything went to chaos. Adam tells Jonas that if he can prevent the suicide, then nothing that follows will occur: Mikkel will not travel back and they will never be born, but everyone else will live—including Martha. They will reorder the world.

Adam activates the God Particle, causing it to stabilize into a smooth sphere. Jonas, with his gas mask on, enters the God Particle.



"Is it not peculiar that one feels the greatest aversion towards the very people who are most similar to oneself?"
―Adam to his teenaged self
"You've hardly spoken to us in months and now you want to know what we think? Look around you. We're the kids, but you've been acting like one for months."
―Martha to her mother Katharina
"A person lives three lives. The first ends with the loss of naïveté, the second with the loss of innocence, and the third with the loss of life itself. It is inevitable that we go through all three stages. You will turn into your older self, and your older self into what you see before you."
"I want you to move in with us. You wouldn't be so alone, and Regina would be happy to see more of you. Tomorrow would be best."
"Tomorrow? You're acting like I'm almost on my deathbed."
―Claudia urges her father to move in with her and Regina.
"He was always here, right in front of me. I just can't believe you slept with my husband and my son—but you always did want what belonged to me. You're like a parasite. Did Ulrich ever actually tell you he loved you? In the end, he would always choose us."
―Katharina to Hannah
"I've been here almost a week, and I get the impression no one is telling the truth. Everyone's trying to hide something—although I'm not sure if you're all hiding the same thing or if everyone is trying to keep their own skeleton in the closet."
―Clausen gets a remarkably accurate read of the situation after just four days on the job.
"We've declared war on time, declared war on God. We're creating a new world, without time, without God. What does that mean? It means that what people have worshiped for millennia—the God who holds everything together—that God is nothing more than time itself. Not a thinking, acting entity, a physical law with which one can negotiate as little as one can with one's own fate. God is time. And time is not merciful. We are born, and our life is already trickling away like the sand in this hourglass. Death is forever inevitably before us. Our fate is nothing but a concatenation of cause and effect, in light and in shadow."
―Adam describes his organization's philosophy and purpose.



  • What is the significance of what appears to be dark matter coming out of Martha's navel in Jonas's dream?
  • What happened to Doris Tiedemann? It was obvious that she was not present in Claudia's and Egon's lives by the 1980s, but it is not until this episode that she is mentioned, that she "would be proud" of Claudia.
  • Who is H.G. Tannhaus really if he was simply the adoptive father of Charlotte?
  • What happened to Bernd's arm in 1987?
  • Who is Charlotte's mother? She is still alive, at least somewhen in time.
  • How did Sic Mundus build their own God Particle? Why is it considered a "twin" of the one in the future?
  • Does Adam truly want Jonas to stop their father's suicide, or does he have an ulterior motive?


  • H.G. Tannhaus is Charlotte's adoptive grandfather, not her biological grandfather.
  • Noah is Charlotte's father. This was what he learned from the missing pages of the notebook.
  • Adam reveals his organization's goal: waging war on time, which he likens to God. They seek to create a new world, without time or God. Considering Adam remains a shadowy figure, this must be considered with skepticism, but it is what he tells his younger self.
  • It is possible to time travel in increments that break the thirty-three-year limit, as long as the time travel device allows it.


  • The recurring dream of Jonas and Martha making love is seen again, this time involving the older Jonas, who also awakens panting and sitting on the edge of his bed, as we have seen with teenage Jonas, Martha and Mikkel.
  • Hannah continues to lose the men in her life- Michael, Young Jonas, Ulrich and now Older Jonas.
  • Ines seems determined to hold onto Mikkel and prevent him from finding his family, Why is she drugging him?
  • Why would Adam send Jonas to prevent Michael's suicide, thus erasing his existence?

Themes and Motifs[]


  • The dates featured in this episode are: June 25, 1921; June 25, 1987 and June 25, 2020.
  • This episode continues the countdown to the apocalypse. It is now 2 days until the apocalypse.
  • Ulrich traveled the slow path to find Mikkel, staying 34 years in the asylum before he is reunited with him in his old age.
  • The kids (excluding Bartosz) travel for the first time.


→ See 65 images from Lost and Found at Images from Lost and Found.


Dark Episodes
Season 1 "Secrets" · "Lies" · "Past and Present" · "Double Lives" · "Truths" · "Sic Mundus Creatus Est" · "Crossroads" · "As You Sow, so You Shall Reap" · "Everything Is Now" · "Alpha and Omega"
Season 2 "Beginnings and Endings" · "Dark Matter" · "Ghosts" · "The Travelers" · "Lost and Found" · "An Endless Cycle" · "The White Devil" · "Endings and Beginnings"
Season 3 "Deja-vu" · "The Survivors" · "Adam and Eva" · "The Origin" · "Life and Death" · "Light and Shadow" · "Between the Time" · "The Paradise"