An ex-con man and his five trained Dobermans help a Treasury Dept. agent stop a racketeer and his gang. An ex-con man and his five trained Dobermans help a Treasury Dept. agent stop a racketeer and his gang. An ex-con man and his five trained Dobermans help a Treasury Dept. agent stop a racketeer and his gang. An ex-con man and his five trained Dobermans help a Treasury Dept. agent stop a racketeer and his gang.