During World War II, a naval engineer accidentally creates an iconic spiral toy that walks down stairs. An engineer tries to invent a synthetic rubber for the war effort and instead creates a strange putty.

As the post-war baby boom creates unprecedented demand for toys, Ruth Handler turns her greatest gamble into the most recognizable toy in the world.

A young machinist in England invents one of the world's most successful toys when he creates a toy car small enough to fit inside a matchbox for his daughter to take to school; Elliot Handler creates one of the biggest toy rivalries in history.

Milton Bradley creates one of America's first board games, but the Parker brothers threaten Bradley's reign.