Veteran cinematographer-turned-director Norman Dawn calls the shots in Two Lost Worlds. Set in the Australian colony of Queensland, the film stars Jim Arness as Kirk Hamilton, an American seaman who conducts an ongoing battle of wills and weapons against marauding pirates. After a particularly deadly skirmish, Hamilton and his men find themselves marooned somewhere in the Dutch East Indies. The film's many subplots are dispensed with during a last-reel volcanic eruption. When not indulging in derring-do, Hamilton romances an Aussie lass (Laura Elliot). If Elliot looks familiar, that's because she later played Mrs. Larry Tate on TV's Bewitched, billed under her new "nom de film" Kasey Rogers.