Olive sends a farewell letter to Popeye: She's over sailors; it's cowboys for her; she's gone out west, to Bar None Ranch. Popeye immediately travels there to find her - and discovers Bluto runs the place.
as Popeye (voice) (uncredited)
as Olive Oyl (voice) (uncredited)
as Bluto aka 'Fatty' (voice) (uncredited)
