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The oceans are leaking through a fissure in the ocean floor. A con-man named Muldoon agrees to guide Mark through the fissure to investigate. However, Mark is unaware either that giants inhabit the other side of the fissure or that Muldoon has already stolen gold from one of them.
Episodes
EP 1
Melt Down
1977-09-22
EP 2
The Mudworm
1977-10-13
EP 3
The Hawk of Mu
1977-10-18
EP 4
Giant
1977-10-25
EP 5
Man O' War
1977-11-01
EP 6
Shoot-Out at Land's End
1977-11-08
EP 7
Crystal Water, Sudden Death
1977-11-22
EP 8
The Naked Montague
1977-12-06
EP 9
C.W. Hyde
1977-12-13
EP 10
Scavenger Hunt
1978-04-18
EP 11
Imp
1978-04-25
EP 12
The Siren
1978-05-02
EP 13
Deadly Carnival
1978-06-06
Voice Cast
Patrick DuffyMark HarrisVoice Actor
Belinda MontgomeryDr. Elizabeth MerrillVoice Actor
Alan FudgeDr. CrawfordVoice Actor
