How did Jason multiply in Dark Matter? Hundreds of him want the same wife and the same kid
Joel Edgerton plays a small army of Jason Dessens in Dark Matter, and the reason there are so many of them was built into the show's rules long before the first double showed up.
Dark Matter is Blake Crouch's Apple TV adaptation of his own 2016 novel. Edgerton plays Jason Dessen, a Chicago physics professor; Jennifer Connelly plays his wife, Daniela, and Oakes Fegley their teenage son, Charlie. Alice Braga is Amanda, the psychiatrist who travels with Jason. Season 1 premiered on May 8, 2024. Season 2 ran from August 28 to October 30, 2026.
The setup: another version of Jason, the one the show calls Jason2, chose career over family and built the Box, a machine that moves a person between parallel worlds. He used it to kidnap the Jason we follow, Jason1, drop him into his own empty life, and take over his house, his wife and his son. Jason1 spends the season inside the Box, trying to find his way home.
Every choice made another Jason
The Box works on the many-worlds idea: every possible outcome of a decision exists as its own reality. Travel through the Box, and your decisions are no longer abstract. Each time Jason1 made a choice on his way home, the path split, and a new Jason walked off down the other branch.
Every one of those Jasons had the same memories up to the moment of the split. Every one of them had been abducted from the same life. So every one of them wanted the same thing: get back to Daniela and Charlie, and deal with Jason2.
The show tips its hand at the end of Episode 7, "In the Fires of Dead Stars." Two Jasons walk into the same gun shop in the same clothes, with the same backpack and the same makeshift wedding ring, replacing the one Jason2 took. In Episode 8, "Jupiter," Jason1 sits down at his favorite bar with another version of himself, and the two of them work out where the others came from.
Crouch told Screen Rant the twist almost wasn't in the book.
"I originally thought it was just going to be Jason1 versus Jason2."
The version he wrote instead was the one where, just when Jason thinks he's home, "all these other versions of him are also home."
Why there's only one Jason2
The same logic should apply to Jason2, who made his own choices in the Box. Crouch's answer to Screen Rant was blunt: "Technically, yes, there are other Jason2s." The show simply keeps them off screen.
"We dialed it to what we felt was the appropriate [expletive] level."
Same wife, same kid
In "Jupiter," the arrivals start colliding. Jason2 kills one Jason outside the house and hides the body in the garage, then kills another in a university library bathroom. Jason1 gets himself arrested so he can see Daniela at the police station without Jason2 around, and the two agree on a code word only her Jason will know: "Jupiter."
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In the finale, "Entanglement," Jason1 finds a chat room full of Jasons, each posting why he deserves Daniela. Two of the proposals reach her. One is joint custody. "Holidays would be a nightmare," Daniela says. The other is a lottery. "Whoever had that idea just lost the lottery."
Not every Jason is willing to negotiate. One beats Jason2 with a pipe to find out where the family is hiding. Another holds Jason1 at shotgun point until Jason2 shoots him. Jason2, finally out of moves, apologizes, gives Jason1 back his wedding ring and the key to his Honda, and tells him to go.
Daniela posts on the board that she has made her choice. When the family reaches the Box at a warehouse, hundreds of Jasons are waiting. One steps forward and says they just need to say goodbye. Another reminds the crowd that this is about what Daniela and Charlie want, and clears a path. The three of them step inside, take an ampoule each, and Charlie picks the door.
How the book does it
The novel uses the same rule: every new decision in the Box creates another Jason. The ending is harsher. In the book, Jason1 mortally wounds Jason2 in their fight before escaping with his family. The show keeps Jason2 alive, beaten and bloody on a beach, which leaves him free for Season 2.
Season 2 opens with what the family left behind: a coroner looking at 13 identical corpses found around Chicago. Agent Mitchel MacNamara, played by Chris Diamantopoulos, assumes he's dealing with clones, and he has more than one to ask. "I got two other Jasons in custody," he tells the one in front of him.
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