David and Andrea unexpectedly rekindle their romance when they go on a cruise with Mark and Tammy; Mark catches a whale that threatens the safety of the cruise; Hank dates a mermaid who dislikes hot dogs.

Cast: Adam Malamut, Craig Malamut, Talia Genevieve, Fred Armisen, Chris Garcia, Jake Hart, Ally Maki, Taylor Ortega, Tommy Pope, Joy Valencia, Devin Halliwell