It stars Woody Harrelson and Antonio Banderas as two boxers and best friends who travel together to Las Vegas to fight each other, with the winner receiving a match for the middleweight championship.
The fighters scheduled to be on his undercard in Las Vegas (a preliminary to a main event featuring heavyweight Mike Tyson) suddenly become unavailable at the last minute.
Grace's own plan is to pitch her various money-making ideas to Vegas bigshots like hotel and casino boss Hank Goody and raise venture capital.
Agreeing to at least give the fans a show, Vince and Cesar turn up the intensity and beat each other so savagely that the crowd and TV commentators begin to pay attention.
The film also features many cameo appearances by people such as Steve Lawrence, Tony Curtis, Wesley Snipes, Mike Tyson, George Foreman, Kevin Costner, Rod Stewart, Jennifer Tilly, Natasha Gregson Wagner, James Woods, Drew Carey, Jacob Duran, World Boxing Council President José Sulaimán and Chuck Bodak.