Atomic Robo: The Savage Sword of Dr. Dinosaur #4
Atomic Robo and his Action Scientists are trapped in Hollow Earth. If the magma, monsters, two different armies, Dr. Dinosaur, or his Time Bomb set to destroy the previous 65 million years don't get them, then Majestic 12 will! 'Cause those guys are invading Tesladyne Island. Don't worry, there's still one more issue for things to get worse.