Former Navy Seal Lamont Dixon thought he left his fighting days behind when he became a tugboat captain assigned to tow an offshore oil rig. But calm waters begin to stir as an offshore drilling protest turns into a terrorist hijacking. When the hijackers reveal part of their elaborate scheme, Dixon suspects foul play. With the help of FBI agent Lisa Reed coordinating the counter-attack from shore, it's sink or swim, as Dixon and Reed try to save the hostages...but can they defuse the deadly plan before it's too late?