During a special operations training mission in Panama, four U.S. soldiers are killed mysteriously, and their leader, Sgt. Nathan West (Samuel L. Jackson), goes missing. A military investigator, Capt. Julia Osborne (Connie Nielsen), has trouble convincing the two survivors to talk about what happened that night. A more experienced investigator, Tom Hardy (John Travolta), is brought in to crack the case. However, when the survivors do start talking, their stories differ from one another.