Superman, Green Lantern and The Flash must help Aquaman save the underwater city of Atlantis. A massive shift in the Earth's tectonic plates has unleashed a volcanic eruption beneath the waves - the ancient kingdom appears doomed! Specially engineered Geothermal Hydrosuits and Rebreathers are the heroes' only protection against exploding lava flows, super-heated vents and deadly seismic tremors! Join the Justice League's battle against nature as they fight to save Aquaman's home!