Two months later, the passengers of the Avenue 5 spaceship are still unaware of their current situation. Captain Ryan Clark tries hard to tell them the truth, but the situation takes an unexpected turn.
As the ship nears the sun, the crew is forced to decide which passengers to save in the cold room.
In an effort to save the ship's primary food source, the crew finds hope on a nearby space station.
Iris attempts to blackmail the control center, while the presence of an unwanted intruder leads to the entire ship being shut down.
Following a failed uprising, the passengers vote on new leadership, resulting in a surprising lineup of candidates. Meanwhile, on Earth, the Office of the Other President unveils a plan that could mean disaster for Avenue 5.
The ship's passengers find one solution that will return everyone to their homes on Earth, even though they have become accustomed to the way of life under the new leader.
The crew turns to Judd’s rating system to handle a new threat. As Ryan’s score unexpectedly drops, Billie begins looking for a better match, while Judd attempts to mend things with his estranged partner, Iris.
With the ship split, both sides find themselves in a fierce battle for survival, while condemning the other half of the ship to imminent death. Ryan participates in an unexpected wedding, and Rav achieves a personal milestone.