Andrew and Gerrid return victorious from the moose hunt, uniting the band for the first time. But a sudden cold spell leads to a scramble to make winter shelters. Oliver's refusal to follow the group's plan leads to an explosive confrontation.
Devon makes an admission to Elena; Nick defends reconciling with Phyllis; Sharon receives a visitor; Chance covers for Adam.
Tempers flare on the Atlas over a water-system glitch and an act of betrayal. As Matt works on the ship's issue, he accidentally meets Lex's new friend.
With only hours to go before Atlas' planned touchdown on Mars, Emma is confronted with everything that could go wrong, while Lu receives new orders.
As Christmas approaches, the crew prepares to make their final calls home before communication grows spotty. Matt and Lex adjust to their new normal.
Emma's behavior becomes a cause for concern, Kwesi and Lu team up on a plant mystery, and Lex makes an impulsive decision with far-reaching consequences.
Emotions run high as rapidly dwindling water rations on the Atlas leave the crew and Mission Control scrambling to find a fix before time runs out.
A problem with Atlas' supply ship jeopardizes the mission and sparks questions about Emma's commitment to landing on Mars.
As the mission launches, Emma finds her mettle as commander tested by an onboard accident, a divided crew and a family emergency back on Earth.
When a ship malfunction threatens the voyage before it's barely begun, Emma works with a wary Misha on a high-risk repair operation.
A staff change at Mission Control upsets the usually unflappable Lu, and the fallout undermines Emma's command. Matt encourages Lex to return to school.
Emma puts herself in harm's way when Ram unwittingly endangers the lives of everyone on the Atlas. Matt must make a wrenching decision about his future.
For their first show, Ned and Cornelius beam Andy Richter and Gillian Jacobs down to their new talk show.
Ned beams in Raven-Symoné to help him understand human art. BETI takes aim at Thomas Lennon.
Taye Diggs, Rachel Bloom, Olivia Rodrigo and Joshua Bassett help Ned create his own musical.
Ned becomes a fashionista with help from Rachel Bilson and RuPaul Charles.
Ned learns about scary movies from Lil Rel Howery and horror director Eli Roth.
Ned hosts a Star Wars-themed show with super fan Reggie Watts, Billy Dee Williams, and BB-8.