Spanish title: El contragolpe
Enzo Barboni (credited as "E.B. Clucher"), also credited as writer
Sonny, a New York wise guy, dreams of becoming a feared gangster. He runs errands for the mob with some success, so as a result the "Don" gives him, as a reward, the control of Mulberry Street, a location which includes a gym run by Father O'Flanagan (Adapted from IMDb)