A bro bachelor and a divorcée attempt to survive a 14-day fan challenge plagued by unrelenting heat, venomous centipedes and swarms of bees on a remote island in the Philippines -- but their biggest battle will be with each other.

Four survivalists seek redemption for their past failures. However, their promises to make it through 21 days on a remote Philippine lake are put to the test when they accidentally ingest a toxic substance.