: Four couples attend a "marriage boot camp" on a remote tropical island (Isla Corazon) to work on their troubled relationships through therapy and physical challenges.
(Brandon Auret): The owner of the island and leader of the retreat. 6-Headed Shark Attack
: A six-headed shark, the result of secret U.S. government genetic experiments from forty years prior, lurking near the island. Key Characters : : Four couples attend a "marriage boot camp"