The Wishbone family are far from happy. In an attempt to reconnect as a family, they plan a fun night out. However, the plan backfires when they are cursed and all turned into Monsters.

The life of Gumball Watterson, a 12-year old cat who attends middle school in Elmore. Accompanied by his pet, adoptive brother, and best friend Darwin Watterson, he frequently finds himself involved in various shenanigans around the city, during which he interacts with various family members: Anais, Richard, and Nicole Watterson, and other various citizens.