Alcatraz was sold to the public as escape-proof, a claim the island's own record kept undercutting. This film examines the June 1962 breakout of Frank Morris and brothers Clarence and John Anglin, later dramatized in Clint Eastwood's 1979 film, using contemporary case files and interviews with FBI agents, former guards, and ex-inmates of the Rock. It traces the prison's history back to its military years, including a 1918 raft escape by four soldiers who made it to Sutro Forest before one was caught, and notes that three girls swam the same bay currents in 1933, proof the crossing was survivable. The film reconstructs how the three men spent over a year carving exit routes and building dummy heads to fool nightly checks, all without alerting wardens. Whether they drowned in San Francisco Bay or made it to shore and vanished is still unresolved; the case remains open, and the film lays out the evidence on both sides without declaring a winner.