Sam Cooper (Steve Gutenberg) is an attach? in the U.S. State Department when, on the day before his wedding, a dying scientist hands him a formula that induces invisibility, and Sam finds himself fleeing with the maid of honor to escape both Russian and U.S. agents. Hotly pursued by everyone, Sam has to use the formula on himself, inviting a series of minor disasters. The very decision to make a movie about an invisible man in 3-D should have warned of trouble ahead.