The new-look teams do battle over land, sea, and air in Hamilton, Ontario; fierce rivalries continue to ignite; another team gets dropped from the competition.

The remaining teams take the plunge into the Rideau Canal Locks in Ottawa for an unprecedented relay race. Team chemistry and loyalty is tested when Brandon reveals a game-changing twist.

Alliances emerge on the remote Les Îles-de-la-Madeleine Québec with the first elimination showdown looming.

Twenty extraordinary Canadians form five formidable teams and face-off in a massive cross-country obstacle course competition; the action kicks off in St. John's with two epic challenges.