Underachiever Gumball (Jacob Tremblay) is a pint-sized 11 year old cat with grand aspirations. When mob-connected fish Gill Grunt (Darin De Paul) is accidentally killed, Gumball concocts a story with Gill's peace-loving brother Darwin (JD McCrary) that it was he who murdered the fish. Suddenly hailed "Fishslayer" by his Elmore brethren, Gumball has bigger animals to fry when Gill's father mob boss Plankton (Mr. Lawrence), dispatches his henchmen to track down his son's killer.
