A plummet in family fortunes forces Bill Billings ( Kenneth Harlan ) to become a racing car driver. His wife, Pamela ( Marie Prevost ), has been carrying on a bold flirtation with a wily philanderer, who, tiring of her, turns his attention to a younger girl. When Pamela tries to defend her reputation, Bill breaks in; and a fight ensues in which he is injured. In a reconciliation, Pamela takes his place as driver and triumphantly wins the race.