After arriving in Chernobyl, Battalion leads StormWatch One in the search for the missing squad members. A super powered being named Regent used the reactor to enter this dimension and conquer the world, and he is planning to blow up the reactor along with Winter and Fahrenheit to hide himself from a mysterious entity known as the Protectorate.
StormWatch One takes on Regent, but Weatherman One has a nuclear package on its way as a contingency plan. When Cannon's reckless nature jeopardizes the mission, Weatherman also commands Major LeSalle to release the WarGuard.
When Winter is freed, he uses his energy absorbing powers to neutralize Regent's Justice Stone, at which point the strange being teleports away. After Fuji is able to stabilize the reactor core, the team returns to SkyWatch to celebrate their victory.