An American soldier who had been killed during the Vietnam War is revived 25 years later by the military as a semi-android, UniSols, a high-tech soldier of the future. After the failure of the initiative to erase all the soldier's memories, he begins to experience flashbacks that are forcing him to recall his past.
John Matrix, the former leader of a special commando strike force that always got the toughest jobs done, is forced back into action when his young daughter is kidnapped. To find her, Matrix has to fight his way through an array of punks, killers, one of his former commandos, and a fully equipped private army. With the help of a feisty stewardess and an old friend, Matrix has only a few hours to overcome his greatest challenge: finding his daughter before she's killed.
High School student David Lightman (Matthew Broderick) has a talent for hacking. But while trying to hack into a computer system to play unreleased video games, he unwittingly taps into the Defense Department's war computer and initiates a confrontation of global proportions! Together with his girlfriend (Ally Sheedy) and a wizardly computer genius (John Wood), David must race against time to outwit his opponent...and prevent a nuclear Armageddon.