A smart and serious marine biologist and a fun-loving and laissez-faire dive instructor must team up to save their beloved reef from being destroyed before it's too late.

* a married couple decide to explore a "member's only night club" but quickly realize the deadly consequences of their actions.

1940: the entire population of Friar, New Hampshire walked up a winding mountain trail, leaving everything behind. 2008: the first official expedition into the wilderness attempts to solve the mystery of the lost citizens of Friar.