Struggling to keep their tribe intact, the "Heroes" vow to work together as long as it takes to ensure that they outlast the "Villains." Meanwhile, the "Villains" begin to turn on one another after one tribe member makes a costly mistake at the Reward Challenge.

Reunited on the merged tribe, two old friends rekindle an alliance but trust doesn't come easily for this powerful pair, and one castaway makes an unprecedented play, setting the stage for one of the most surprising Tribal Councils in Survivor history.