Vacation turns disaster when Houston grad, Kyle and her friends escape a plane crash in the desolate Louisiana everglades, only to discover there's something way more dangerous lurking in the shallows.

International assassin Walker is compromised during a mission and sent to a reassignment center for a new identity. During his stay at the facility, a ruthless assault team storms the compound searching for someone their boss has lost. Walker begrudgingly falls in with skilled hitwoman Elda and her mysterious ward Juliet in order to survive the night.