The ancient wizard Shazam gives young radio operator Billy Batson (Frank Coghlan, Jr.) the power to become the World's Mightiest Mortal, Captain Marvel (Tom Tyler), in order to stop a mysterious masked criminal known as the Scorpion from assembling a deadly lens weapon that would make him master of the world. William Benedict and Louise Currie star in this all-time serial classic. 12 "Shazam"-tastic episodes; 3 1/2 hrs. Standard; Soundtrack: English; audio commentary.