Nine Americans with different backgrounds and beliefs participate in a social experiment designed to see if they can put their differences aside and work together to win a pile of cash.
Reeling from a toxic fight and an unexpected departure of one of their own, the group vows once again to stick together to the end.
The raft is a tinderbox, and newcomer Jimmy is ready to light a match and watch it burn; a chance to get naked and win more cash helps cool things off -- until a shocking allegation emerges, propelling the raft directly into the path of a storm.
After last night's elimination, the raft is in a state of shock; smelling blood in the water, Jimmy capitalizes on an opportunity to take over the raft; a misstep puts him in the crosshairs -- and he breaks bro-code out of desperation.
Tensions run high as CJ struggles to recover from his blow-up with Tara, who is now dead set on throwing him overboard; looking to overthrow the status quo, Jimmy continues to play with fire -- once again, he sets the raft ablaze.
The departure has the participants questioning everything; the group makes a pact again to stay together to the end; Riley, a new swap, comes aboard, putting their alliance to the test.
Everything the participants thought they knew about the experiment changed; those who felt they were on solid ground are now treading lightly; no one's safe as they head to their first elimination; contestants' hidden dark sides are revealed.
While undercover in the dark, two participants hatch a plan; once a chance to carry out their plan presents itself in a shocking twist, the fate of the experiment and all of the money hangs in the balance.