Three prisoners come under suspicion for a stool pigeon's murder in the penitentiary. Henry Hunter, Ann Preston, Alan Dinehart, Alan Baxter, Noah Beery Jr., Grant Mitchell, Bernadene Hayes, Alan Hale, Anthony Quinn (his debut).
Plenty of action carries this story about paroled prisoners who try to make it on the outside. The outside pressures almost get to them, but eventually they stay on the straight and narrow and prove that the idea of parole is a good one.