During a test, a race car using an experimental oil fueled engine blows up, killing the driver. Lucky Taylor, a stunt driver, is initially blamed for the accident, but is later cleared. He thinks the engine design has a real chance to win races, but the racing association has banned it since the accident. He devises a scheme to have a car equipped with the engine entered into a race, without race officials-- or the engine designer's sassy daughter -- finding out about it.

Richard Arlen
as "Lucky" Larry Taylor

Andy Devine
as 'Guppy' Wexel

Peggy Moran
as Patricia "Pat" O'Shea

Vinton Hayworth
as Bruce Crowley (as Jack Arnold)

Herbert Corthell
as Pop O'Shea

Harry C. Bradley
as Jones

Sandra King
as June Allen

Landers Stevens
as Lloyd B. Allen

John Holmes
as Eddie Dodds

Jack Rice
as Parker