When multi-millionaire Maxwell Abbott dies, he arranges for 5 couples to participate in a winner-take-all automobile rally using his collection of classic cars. The prize: the vintage cars themselves, valued at nearly $2 million. McMillan was an old friend of Abbott's and he's pledged the collection to the police benevolent fund if he wins. It soon becomes apparent that someone is prepared to win at all costs. Forced to use Sally's old car after someone disables the classic Corvette they were supposed to use, the McMillan's set off but not before others have found ...