Commander Battle and the Atomic Sub #1

Commander Battle and his atomic submarine crew discover an underwater island heavily guarded by Atlantean forces. After locating the secret base, the crew infiltrates it and learns that alien beings from Mercury are planning to conquer Earth and have established a hidden base on the island. The Atomic Commandos attempt their escape as the Atlanteans pursue them, ultimately making it back to their submarine and diving to safety as a fiery blast engulfs the area. With the atomic submarine receiving a radio call for immediate assistance, Commander Battle prepares to surface and respond to the urgent summons.