Scientists, assembled to prove their methods are effective in criminal investigation, try to solve a series of murders.

The Secret Seven, is a group of scientists dedicated to the ideal of crime busting through scientific methods. The gangsters, led by mob-boss Sam O'Donnell (Barton MacLane), doesn't approve and kidnaps Lola Hobbs (Florence Rice), the daughter of Police Chief Hobbs (Joseph Crehan), who happens to be working in league with The Seven. And the mob also hadn't reckoned with Pat Norris (Bruce Bennett), a reformed convict now a fully paid-up member of The Seven, and sweet on Lola.—Les Adams <[email protected]>