Defenders of the Earth

Ming plans to melt the polar ice cap in order to drown the entire world. The Defenders go to investigate when they discover blocks of ice drifting away. The adult Defenders land in the Arctic and have to fend for themselves. The Phantom goes to help them while the young Defenders try to ebb the flow in Central City.   

Mandrake is in the process of legally adopting Kshin when suddenly Hal, an old Asian man, shows up claiming to be Kshin's grandfather. He reminds Kshin of the moment as an infant when his parents died while searching for the Lost City of Dreams, which seems to validate his claim. They join together to go on a search  for the city with a now complete map, but along the way they encounter the Dragon Queen, the evil being who killed Kshin's mother and father. 

Ming takes advantage of L.J.'s immaturity so that he gain possession of Sun Medallions, which could aid Moriag, the leader of the resistance movement on Ming's home planet of Mongo. Ming invades Monitor and takes over Dynak X so that he can capture Moriag and Jedda. L.J. refuses to believe what he is seeing is anything other than a battle simulation, but when he realizes the truth, he prepares to invade Ice Station Earth so that he can rescue his friends and make up for the mistake.

The Defenders fly to Alaska and discover that a long-dormant volcano, with an artificial dome placed over it, is mysteriously heating up. After a narrow escape in a mountain cave, the group that discovers that Ming has used a drill to thaw out tens of thousands of beasts buried in the frozen tundra, and intends to release them all over Earth so that they can destroy all the world's cities!