The Saturnians are a race of extraterrestrials (from guess where?) who look and act like demons. Anticipating global warming by several decades, the Saturninans intend to melt the Arctic Circle in order to flood the earth so they can take over everything. Though Aquaman and Aqualad mete out a lot of painful punishiment to Saturnians, it's Aqualad's walrus pal Tusky who infiltrates the enemy's submarine in order to save the world from "the big meltdown". ~ Hal Erickson, Rovi