June 1962, escape attempt from Alcatraz Federal Penitentiary by Frank Morris and the Anglin brothers, Clarence and John. It covers the planning and execution of the escape, the subsequent FBI investigation, and the enduring mystery surrounding the inmates' fate. The episode explores numerous theories regarding their possible survival, including reported sightings and various pieces of circumstantial evidence. Despite the FBI officially concluding the men drowned, the U.S. Marshals Service continues its investigation, keeping the case open and the escapees on their wanted list.