"It's war on the underworld when Detective Bill Bannister goes after the crime syndicate calling themselves The League of Murdered Men. Lead by the mysterious Professor Mortis the league does seem to be crewed by criminals who have all been reported dead! Can Bannister, with the help of fellow detectives and bold reporter Vicki Logan shut down this dangerous gang? Find out in this exciting thirteen chapter Universal serial starring Kent Taylor, Irene Harvey and Ralph Morgan!