Darrell Dane was a chemist who discovered a liquid that could shrink a human being to only six inches tall but still leave him or her with the strength of a full-grown human. Later, his girlfriend, Martha Roberts, the daughter of Darrell's colleague Dr. Roberts, was threatened by gangsters. Darrell took the formula and used his height to defeat the criminals. As a super hero, he is assisted by his sidekick, Martha Roberts. For transportation, he uses a bald eagle, a Dollplane (model airplane), and Elmo, a German Shepherd. His power is the ability to shrink to six inches tall but still have the strength of a full-grown man. He can return to his normal size whenever he wants.