Virginia Kent, the daughter of an automobile manufacturer believes in advertising and speeds her car through the city streets in hopes of being arrested and getting publicity for the "Grenada." She is arrested by Roddy Smith a temporary motor cop but in reality the son of her father's competitor. The case is dismissed in court.

Mr. Kent's motor car business is in bad shape and his manager tries to get Roddy's father to buy up the Kent business.

Upon learning that her father is going away for a short while she has him sign a letter which gives her the authority to have a racing car built according to her own specifications. Roddy Smith gets a job as mechanic in the Grenada factory and builds the car for her.

Viriginia enters it in the races and at the last moment learns that her driver has been bought. She begs Roddy to drive her car but he is pledged to drive his own father's. Viriginia determines to drive herself.

Roddy Smith is compelled to drive his father's car against her. During the race she has been ahead but on the last lap runs out of gas. Roddy runs into her machine and pushes it over the line. He is injured in the accident but Virginia comes to him and then everything is all right.