It is 1865 and Union prisoners use a military balloon to escape a Southern prison camp near the end of the Civil War. The balloon drifts for days and finally lands on a mysterious volcanic island with very unusual inhabitants. Also landing, in a better aircraft, is Rulu, a visitor from Mercury. She seeks a radio-active material that will enable her to manufacture an explosive that will destroy the world or, at least, the portion known as Earth in this 15 Chapter Serial from the 1950s.
Richard Crane
Capt. Cyrus Harding
Marshall Reed
Jack Pencroft
Karen Randle
Rulu of Mercury
Ralph Hodges
Herbert 'Bert' Brown
Gene Roth
Pirate Capt. Shard
Hugh Prosser
Gideon Spillet
Leonard Penn
Capt. Nemo
Terry Frost
Ayrton - The Wild Man
Rusty Wescoatt
Moley - Shard Henchman
Bernie Hamilton
Neb
William Fawcett
Mr. Jackson
George Robotham
Mercurian
Stanley Blystone
Confederate Officer
Roy Butler
Thug in Park
Frank Ellis
Pirate
