When Ned becomes obsessed with Star Wars, he beams in super fan Reggie Watts and the legendary Billy Dee Williams. The CLODs start a lightsaber battle. BETI asks BB-8 to help repair the Roaster Toaster. Ned reaches out to his father, the Admiral.
When the CLODs stay up late watching scary movies, Ned learns about horror from Lil Rel Howery and director Eli Roth. Cornelius is sent to investigate a human cemetery. BETI warns the ship may be haunted. The full moon leads to a terrifying transformation.
Ned becomes a fashionista with help from Rachel Bilson and RuPaul Charles. Cornelius beams to the surface and becomes a stylist. The CLODs stage a fashion show in honor of RuPaul’s favorite fashion icon, Cher.
Mesmerized by musicals, Ned gets Taye Diggs and Rachel Bloom to help him create his own musical episode. High School Musical: The Musical: The Series stars Olivia Rodrigo and Joshua Bassett inspire Cornelius to find his voice. BETI and the CLODs stage a production number.
Ned beams in Raven Symone and comedian Thomas Lennon, hoping they can help him understand human art. BETI takes aim at Lennon with a brain beam. Cornelius becomes a street artist.
After calling off the invasion of Earth, Ned and Cornelius decide to start a late-night talk show and beam in Andy Richter and Gillian Jacobs to be their first guests. BETI convinces Ned to fire the CLODs on their first day as his house band.
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.
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.
When a ship malfunction threatens the voyage before it's barely begun, Emma works with a wary Misha on a high-risk repair operation.
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.
A problem with Atlas' supply ship jeopardizes the mission and sparks questions about Emma's commitment to landing on Mars.
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.
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.
As Christmas approaches, the crew prepares to make their final calls home before communication grows spotty. Matt and Lex adjust to their new normal.
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.
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.
Devon makes an admission to Elena; Nick defends reconciling with Phyllis; Sharon receives a visitor; Chance covers for Adam.
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.