Super-villains HEATWAVE and CAPTAIN COLD don't like the FLASH, but they
don't like each other either! They face off in a climate-changing
smackdown that could spell disaster for Earth's ecosystems. The FLASH
tries to take the foes one-on one, but ends up encased in arctic ice.
Unable to move, FLASH watches as HEATWAVE turns up the threat level by
melting the frozen seabed . . . a sea full of explosive methane gas!