Caitlyn Snow has powers. She also has a double with those powers, Killer Frost. When Killer Frost begins to experience an attraction to Barry Allen Caitlyn can't help but notice the same things She his. But with Barry's heart following someone else how can he not break Killer Frost heart, her heart. But she might just have to let him keep melting her heart. #1 Flash Tag. Caitlyn tag. and Vibe tag. #2 Killer Frost Tag #3 snowbarry Tag!!!