With the ship facing a fiery threat, Billie hatches a plan that could just save some of the passengers… and the eels. Meanwhile, Iris makes a risky bid on Earth, Ryan finds himself in the middle of a three-way couples’ quarrel, and Mia shares some shocking news with Doug.
Elenco: Hugh Laurie , Josh Gad , Zach Woods , Nikki Amuka-Bird , Lenora Crichlow , Suzy Nakamura , Ethan Phillips , Andy Buckley , Daisy May Cooper , Jessica St. Clair .