Three armed robbers, Harry Rawlins, Terry Miller and Joe Pirelli, die when the security van that they are robbing catches fire in the Kingsway Tunnel in London. Their widows, Dolly Rawlins, Shirley Miller and Linda Pirelli, find their husbands' plans for the robbery and decide to stage it themselves. They enlist the help of a fourth woman, Bella O'Reilly and succeed in making off with the cash.
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.
Aiming to defeat the Man of Steel, wealthy executive Ross Webster hires bumbling but brilliant Gus Gorman to develop synthetic kryptonite, which yields some unexpected psychological effects in the third installment of the 1980s Superman franchise.
As Rebel leaders map their strategy for an all-out attack on the Emperor's newer, bigger Death Star. Han Solo remains frozen in the cavernous desert fortress of Jabba the Hutt, the most loathsome outlaw in the universe, who is also keeping Princess Leia as a slave girl.