Weaver's 13th birthday takes a dramatic turn when Overlord decides to hijack one of his gifts-- a DNA test kit. With the threat of Overlord's DNA being discovered the family have to work together to keep his existence under wraps.
Jim is thrilled to take the family out for their annual camping trip but when Overlord crashes, the family has to deal with family disagreements - and a bear. R0-FL gets a nice day off and decides to run wild in the Underwoods' home.
Overlord overhears the Underwoods' plan to get rid of him and runs away, causing them to look for him just as a bounty hunter arrives. Flower tries to gather a group of escaped animals and Jim salvages the home after Overlord trashes it.
When movie night and game night are both cancelled, Overlord puts the Underwoods in a void-like escape room while he watches a movie in peace. The Underwoods have to work together to escape the worst game night of their lives.
To test Flower's claim that she loves all living creatures, Overlord brings home a Slugum to cause havoc in the home. Weaver tags along with Willow and Danya and becomes a demanding director determined to shoot the perfect Qwik-Qwok video.
Overlord decides to take on a school bully at Weaver's school but finds he's out of his element. Flower and Jim decide to run a three-legged race for charity but Flower's competitive side takes over.
When Jim accidentally sets off Overlord's new shrink ray, he must pose as Overlord to get rid of a debt collector. Flower accuses Willow of taking her make-up and forces her to work at the animal shelter.
Overlord finds his place with a group of Live Action Role Players and rises to become their leader. Meanwhile Flower and Jim won't allow Willow to use the car until she passes their own bizarre tests.
When Willow's girls' soccer team is overlooked, Overlord decides to get involved - for the other team. Flower takes it upon herself to help R0-FL follow her own interests independent of Overlord, but the plans go awry.
