A group of elite commandos led by a rogue CIA operative take over a battleship to gather the nuclear arms aboard, but their job does not go as planned when they encounter the ship's cook, a former Navy SEAL; ex-Navy SEAL Casey Ryback works to free a passenger train from the hands of a mercenary army who are trying to control a weapons satellite.

An aging United States Coast Guard rescue swimmer's team is killed in a horrific rescue mission. Just prior to this same mission his wife announces that she cannot take anymore. This leaves him an emotional wreck. His commender gives him a choice - quit or take a position as an instructor at the USCG training facility in Louisiana. Reluctantly he takes the position and moves into the school. Once there he immediately increases the 18 week curriculum...