Season 18, Episode 5 - "Grand Theft Otter"
Stuart brings home an otter after “rescuing” it from science experiments at school. Roz insists that he gives it back, but after hearing stories about its mistreatment, she decides to join Stuart and becomes an animal rights activist. The two of them wind up getting involved in a wild chase, involving the science teacher, a group of rival activists who believe the otter is in danger, and a team of money-hungry scientists who just want it for its rarity. Meanwhile, Denise and Gil stumble upon an employee smoking pot in the station basement.
