In an act of heroism, the totally bad, villainous, evil, murdering Killer Frost actually helps out Barry and Co. by using her cool, cold powers on Zoom. Does this class as a triple-cross? Either way, it was awesome to see Frosts powers at work here, and in order to keep down Zoom for any period of time she certainly must be one powerful meta-human. It also helps that shes driven by the loss of her one true Ronnie Raymond, who we saw killed by the hands of Zoom during the previous episode. With Earth-2 seemingly being left behind for now, the biggest shame is that we wont get to see more of Killer Frost. Well, unless Earth-1s Caitlin Snow ever decides to embark down the cold route of villainy.