Inspector Woodward and Sergeant Dias clash with an unscrupulous developer and his ruthless henchmen who are terrorizing an elderly widow, the lone "hold-out" preventing the developer from proceeding with a major real estate project.

A young man turns to crime in order to pay off inherited debts to a loan shark. Extorsion and purse snatching by a bicycling thief are part of the action.

Tempers flare when a professional strikebreaker leads a group of scabs across a picket line.