Flash, Dale and Dr. Zarkov travel 1500 miles beneath the Earth's surface to confront the ruler of a subterranean people who are intent on destroying those who live above ground.
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Dr. Hans Zarkov
I'd like to say "Better luck next time, Zaldoo" - you won't have one - but now you have a parting message to send to your subjects.
It's short and sweet - tell them to turn off the fire blaster.
Or the Mighty Zaldoo will be mighty sorry.