Manchac Swamp in New Orleans, Louisiana, is rumored to be haunted, but Josh Athens doesn't believe it. It certainly didn't affect his decision to take a job with Bayou Boat Tours. But while trying to reach a stranded boat of tourists, Josh's coworker, Carter, crashes their airboat and suddenly their rescue mission turns into one of survival. The boys find the swamp is not only teeming with insects and other wildlife, but also the souls of a long-ago...