Boston Blackie is a former prison inmate campaigning to outlaw Warden Benton's infamous "Water Cross" torture. Benton, however, is successful in his attempt to have Blackie arrested and returned to the prison, but his evil schemes are ultimately thwarted by Mary Carter, Blackie's girlfriend, who manages to alert the governor.

• Fox Film Corporation
• William Russell
• Eva Novak
• Frank Brownlee
• Otto Matieson
• W.C. Robinson
• Fred Esmelton