W5 investigates the deadly 1971 Kingston Penitentiary riot. The four day riot involved more than five hundred prisoners. An inmate describes the brutal scene inside the prison.

The following video uses language that is reflective of its era and not CTV's current standards.

The following program contains language some viewers may find offensive. Viewer discretion is advised.

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W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations since 1966.