An unexpected shakeup shifts the castaways' game trajectories in an all-new direction. Teammates must rely on one another to succeed in a grueling immunity and reward challenge. Then, a wild goose chase unfolds to reinstate one castaway's vote after the discovery of a beware advantage.

A major shakeup hits the game when two tribes turn to three. New tribe members size each other up, but with only four players on each tribe, there is not much room to hide. Then, heat and exhaustion take a major toll on one castaway.