IN A NUT SHELL: Killer Frost had herself a girl party with Harley Quinn and Cheshire after she had captured Kaldur’ahm and had him in her clutches to torture, taunt and generally prod for the amusement of the other villainess’s.
Cheshire makes Kaldur into some living sushi and Killer Frost tries to finish him off with one of her kisses of death, (for those of you who don’t know dick about Killer Frost this is one of the ways she kills men, by sucking the warmth out of them though their mouth, kinda like a dementor ) FORTUNATELY for Kaldur the odds are in his favor since he’s Atlantian and used to the cold sucking his warmth out takes a lot longer than it would a human.
Kid Flash, Artemis, Super Boy & Monqi bust in, an epic battle breaks loose, the subdue the villains, break Kaldur free of the ice block he was imprisoned in and Speedy comes in with his rental copter to air lift everyone out of the arctic.
and that’s the back of the book version of what happened.
Here’s Kaldur’s thoughts post rescue.