Vengeance Cops

Vengeance Cops (1971) is a action, crime, thriller directed by Ivan Hall rated 6.5/10.

The police discover trace the perpetrators of a bank robbery to a group of organized criminals. The criminals attempt to use the sister of a deceased gang member to infiltrate the cops, but when she learns the gang was responsible for her brothers' death, she turns coat and assists the police in foiling the gang's plans.