U.S Postal Inspectors 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, 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.那团剑光所化的银色在见到这团黑影之后。突然间发出一声振奋的剑鸣，随即就如同飞蛾投火一般。飞向了黑影，越飞越近，但银光的体积却也是越来越小，绕着黑雾，在活泼的转圈，蹭来蹭去。就像是久别重逢的游子，进入了父母的怀抱。