A faithful and longstanding CIA operative Wheeler (Jean-Claude Van Damme) has been drugged and brought aboard the Blackwater, a high security prison repurposed from a submarine. There, Wheeler is being tortured into revealing the location of a highly profitable and secret CIA dongle that allows for the decoding a drive containing information about CIA operatives around the world. Trapped on the ship and under fire, Wheeler must befriend rookie agent Cassie (Jasmine Waltz) and an ex-German agent Marco (Dolph Lundgren) in order to get off the ship alive.