String and Dom are hired to fly a helicopter rigged with a prop spaceship during a live concert performance by singing sensation Roxy Marvel (Misty Rowe). Complications develop, however, when a fight with her ex-husband Nick DeSoto (Mayf Nutter), who's also her manager, results in Nick having her kidnapped and replaced by a look-alike lip-syncer. Nick needs the money he can raise from his ex-wife's death to cover some old gambling debts. String and Dom must find Roxy and save her look-alike before DeSoto can carry out his plans.