A typical North American family's lives change drastically when a distant relative moves in from another galaxy - Overlord, the 2nd-most wanted villain in the universe.
Overlord overhears the Underwoods' plan to get rid of him and runs away. Flower tries to gather escaped animals from her Pet Rescue Party and Jim tries to salvage what Overlord has trashed.
Overlord takes 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.
Overlord creates a shrinking device that Jim accidentally sets off, shrinking both Weaver and Overlord. Flower accuses Willow of taking her makeup and makes her pay for it by working at the animal shelter.
Overlord brings home an space slug to test Flower's claim that she loves all creatures. Weaver becomes a demanding director when he shoots Willow and Dayna's basketball video.
Overlord crashes the Underwood's annual camping trip. R0-FL gets a nice day off and decides to lets loose in the Underwoods' home.
Overlord zaps the Underwoods to a void outside of time and space so he can watch a movie alone at home. The family must work together to escape or else be trapped forever!
Overlord goes to crazy lengths to buy a blender. Jim and Flower visit a new day spa.
Willow starts dating a boy and Overlord does not approve. Weaver is worried that Bebe has a crush on him and does everything he can to convince her not to fall in love with him.
Weaver receives a DNA test kit for his birthday, only to have Overlord use it on himself. With the threat of Overlord's DNA being discovered, the family works together to keep his existence under wraps.
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.
