 U.S Postal Inspectors (Louis Gossett, Jr., Jonathon Silverman) are called in when a suburban couple are killed by a mail bomb. Suspicion immediately falls on the couple s estranged and heavily in debt son (Tobias Mehler), who also just happens to be a Navy munitions expert. But investigations reveal that he is on the run from a past event in his life that is associated with the bombings.