Challengers of the Unknown #29
In "Four Roads to Doomsday," the Challengers of the Unknown face a planet-wide threat when Dr. Dutro and the alien Suboko warn them of four mysterious machines set to trigger global disasters. Written by Arnold Drake and illustrated by Bob Brown, this 1962 DC classic sees the team racing to stop the devices—only to discover they were meant to protect Earth all along. The cover by Bob Brown captures the tension as the Challengers prepare to defend their planet against a bizarre alien assault.
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Dr. Dutro and the alien Suboko warn the Challengers that an invasion force has placed four machines across the planet to trigger natural disasters and soften Earth up for invasion. The Challengers try to destroy the devices, but can only move them. When they return to Challenger Mountain, they learn that Dr. Dutro was a fake and that Suboko works for the invasion force and that the devices protected the Earth. The Challengers restore the devices to their spots, despite an attack by aliens on camels with ray guns. They use the last device to drive the aliens back until the Space Police arrive.
Plot details indexed by the Grand Comics Database (CC BY-SA).