Like Total Drama Island, this season is a fictional reality show that follows the competition of thirteen new contestants at Camp Wawanakwa, a summer camp on a fictional island located in an unspecified area in Muskoka, Ontario. However, since the island has been forgotten and left alone for the past two seasons, the island has been used as a toxic nuclear waste dump, transforming it into the perfect location for the most dramatic and brutal challenges yet. The new cast of campers must then participate in competitions to avoid being voted off the island as they all try to get ready to compete with some of the most popular original contestants in the fourth season.
