Killer Frost Promo Flash 3×07

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The Flash returns tonight but the CW have already given us a promo for next week’s episode Killer Frost, the detectives among you have probably guessed it’s all to do with Caitlin and her growing ic-ly powers (brrr) – so much creepy blue contact len’s ensue next week!

The Flash shows every Wednesday on the CW in the US and in the UK on SKY 1.