Twenty castaways are left to fend for themselves among Samoa's white sand beaches, lush green valleys and towering waterfalls.
Immunity is up for grabs and already one member down, Foa Foa needs it desperately. However, they are hit with an unexpected situation and the tension grows in the tribe.
A shocking new deal is struck even as the remaining castaways face the last two immunity challenges in the game.
A clever lie turns a tribe against one of its most harmless members. Meanwhile, at the reward challenge, the chief of one tribe makes a controversial decision that lands him in the crossfire back at camp.
Russell desperately scrambles to regain control of the tribe when a new power player emerges at Foa Foa.