Graphic adventure serially told in Look-In, vol 8 #28-#29, 2 pages each for 4 black & white pages.
The cargo ship Lima Trader is in the middle of the Pacific under contract by the US government carrying a shipment of nuclear waste set for deep-sea dumping. Suddenly it encounters a huge waterspout and within seconds the ship was so damaged all hands were told to abandon ship. The ship sinks but not in the deep trench it was supposed to and the Cetacean and Mark Harris are asked to help. A gigantic manta ray is not pleased with being disturbed.