Phantom of the Air (1933) - Tom Tyler - 12 Chapter Movie Serial from Universal Pictures Inventor John Edmunds (William Desmond) is working on a device called the Contragrav, a machine that defies gravity and can enable a plane to fly without a pilot. He and his daughter Mary (Gloria Dea) enlist the help of airborne Border Patrol captain Bob Raymond (Tom Tyler) as a test pilot to help them complete Edmunds' work on the Contragrav. However, airborne importer (and secret smuggler) Mort Crome (LeRoy Mason) has got wind of the Contragrav, and will stop at nothing to get it.