A Malcolm St. Clair silent boxing sports romantic love triangle prison melodrama about a steel worker who saves a girl in a bar fight by knocking out the man coming on to her. It turns out the man was a boxer named "Killer"; so our steel worker becomes a boxer, but is then arrested for a crime he didn't commit. While in prison, he continues training, so that when he gets out, he can fight "Killer"; he is losing the fight, but his girl tells him that "Killer" framed him, which gives him the drive to knock his opponent out in the final round!
Richard Dix
as Dundee 'Knockout' Reilly
Mary Brian
as Mary Malone
Jack Renault
as Killer Agerra
Harry Gribbon
as Pat Malone
Osgood Perkins
as Spider Cross
Lucia Backus Seger
as Mrs. Reilly
Larry McGrath
as Kewpie Dugan
John Merton
as Buck Lennard
