Summoned to a remote seacoast laboratory, Aquaman and Aqualad bear witness to Dr. Deering's latest invention, an immense ocean-going submersible. Following Dr. Deering beneath the waves,they are treated to a demonstration of just some of the more remarkable features, built into the machine. From the cockpit, Dr. Deering can project the sound of his voice underwater. The machine's robot arms can bear the weight of sunken ships. It has a drill for boring through underwater mountains. It can also clear the sea floor via a powerful suctioning vacuum. Returning to the lab, Dr. Deering is about to showoff his latest breakthrough... a formula to allow man to breath underwater... when he is caught in a sudden explosion. Doused in the chemicals, Dr. Deering begins to choke, no longer able to breath