The Unholy Three

FBI special agents are called in to capture the notorious bank robber and kidnapper Alvin Karpis, the machine gun blasting thug who provides the muscle for the infamous Karpis-Barker gang. Federal heat forces Karpis from hideout to hideout but Karpis always stays one step of the FBI. The G-men play their trump card and, knowing that the gangster loves fishing, manage to track their quarry to popular pier.