After being rudely interrupted by Bim-Bom during her morning song, Unikitty takes advice from her friends and writes down her feelings in a letter. She intends to keep it to herself, but accidentally sends it.
British talk show host Jonathon Ross talks with guests from around the globe.
Sandi Toksvig hosts the seasonal quizmas quiz, with Alan Davies, Sara Pascoe, Johnny Vegas and Josh Widdicombe.
The fast-spreading contaminant leaves Penny, Smith and friends stranded in tight quarters. Will and Maureen set out with Adler to find the Robot.
John recruits an unlikely partner to help hunt down a secret audio signal intercepted by the ship. Will begins to suspect Adler is hiding something.
Will and Penny scramble to hide the robots and figure out their next move. Meanwhile, Hastings amps up his war against the Robinsons.
Penny and Maureen become trapped in a mysterious metal trench, and Don falls prey to a nasty toxin.
While Maureen leads a mutiny, Hastings visits John to deliver an ultimatum, and Penny tries to convince Will that his Robot has changed.
While Will searches for clues to the Robot's fate, John and Judy travel to the dusty surface of the nearby planet to help their fellow survivors.
John's predicament goes from bad to worse, sending Judy on a frantic race across the planet. Penny spies on Smith -- with help from an old friend.
The Robinsons' dreams of a happy reunion fade when they realize something's very wrong aboard the Resolute. Smith seizes a chance to clear her name.
Seven months later, marooned on a watery planet, the Robinsons make a risky bid to power up their Jupiter, and Will vows to track down the Robot.
The mission to save Scarecrow takes an unexpected turn, throwing the Resolute into chaos. Judy hatches a plan to get a ship to Alpha Centauri.
While Kathy oversees the excavation of Marie's grave, Daniel gives McKinven the lead he needs to make an arrest. But it's the exacting forensic science that finally brings peace for Emma.
With Chloe and Sam out of the house, the squad throw Beau a house party. James and Beau surprise Nathan by inviting his online dating interest, Tommy from Amsterdam, over to Newcastle.
A festive edition of the dating show in which singletons meet up with possible partners at a restaurant in the hope of finding love, before deciding whether they want to take things further. This time, former bodybuilding champion Kieran goes on a date with 23-year-old student nurse Abi. Meanwhile, 67-year-old Suzy is set up with Fred, a fellow divorcee who is looking for some excitement in his life, and single mother Amy meets 29-year-old Geordie Scott.
Jack worries about Billy; Kyle and Lola deck the halls; Nick makes a sacrifice for Chelsea.
Granville plans to put the magic back into Christmas, Mr Newbold mixes up his gifts, and Eric and Cyril are keen to try Arkwright's special custard.
The crew tries to redeem themselves with returning charter guests after Ashton cancels a beach picnic which throws the entire boat into complete chaos. Rhylee and Ashton continue to butt heads while Tanner and Simone contemplate their relationship. Brian takes Courtney out on a date and is surprised by her reaction. The entire crew goes out to Patong for an explosive night out. After an intense night of drinking, emotions reach a new high causing Kate to make a dramatic decision.