Fake fortunetellers win the confidence of clients and then get them to part with their money by buying mining stocks which are worthless.

Lucky Devils casts the mismatched duo as a pair of intrepid newsreel cameramen. When they're not risking their lives coverning the Hot Spots of the world, Dick (Arlen) and Andy (Devine) busy themselves romancing Norma (Dorothy Lovett) and Gwendy (Janet Shaw), respectively.

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.