Ray comes from a family of inventors who have been experimenting with steam technology. When a mysterious steam ball arrives, men try to steal it, but Ray escapes with his grandfather. He learns the ball's power and must decide whether to give it to his corrupted father or to Mr. Stephenson, who wants to weaponize it. During the battle between his father's organization and Mr. Stephenson, Ray prevents the ball from being used for war and keeps it from falling into the wrong hands.