The game is turned on its head as one player quits the competition and another is seriously injured; the challenge turns physical as the teams fight to stay afloat.

The players must rise to the occasion as a daunting challenge pushes their limits to new heights; one of the veterans gets life-changing news from home; a powerful new alliance forms that changes the course of the game.

A budding romance between two teammates complicates their future in the game; the challenge forces the competitors to put their brains as well as their brawn to the test.