Pairs of strangers must work together to survive after being stranded on a raft out in the ocean. In the series opener, a fear of sharks has contestants riles up on one raft while a brash decision leads to trouble on the other.
A biologist and a fisherman have trouble working together in the first raft while a Marine and a Peace Corps volunteer survive on seaweed and shark in the other.
A fish and game warden meets his professional wrestling partner; a Harvard businessman joins a professional free diver
A sailor and a landsman face fire and injuries on the orange raft while a football player and a police officer deal with frigid cold weather in the yellow raft.
A broken pump halts the supply of water on the yellow raft, while a couple's relationship is tested on the orange raft.
Catfish hunter and flight attendant vs. boat captain and shark wrangler.