The episode follows Robert Daly (Jesse Plemons), a reclusive but gifted programmer and co-founder of a popular massive multiplayer online game who is bitter over the lack of recognition of his position from his coworkers. He takes out his frustrations by simulating a Star Trek-like space adventure within the game, using his co-workers' DNA to create sentient digital clones of them. Acting as the captain of the USS Callister starship, Daly is able to order his co-workers around, submit them to his will, and mistreat them if they get out of line.