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Get Ready For Tonight’s DC Crossover Event “Heroes Vs Aliens”
“Heroes VS Aliens”, the CW’s much-anticipated DC crossover event that weaves through Supergirl, Arrow, The Flash, and Legends of Tomorrow, starts tonight with Supergirl. The network has done smaller crossovers before, but this will be the first time all four shows will tell sequential sections of the same story. Here’s what you need to know …