Here's How Supergirl Sets Up The CW's Epic Four-Show Crossover

Although The CW has been advertising a four-series crossover between its DC Comics properties, the truth is that it's more of a three-show crossover with special guest star Supergirl (Melissa Benoist).

With the exception of a few mystery breaches opening over National City and a 30-second tag that

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Other Links From TVGuide.com

• Supergirl
• The Flash
• Arrow
• DC's Legends of Tomorrow

Source TVGuide.com: Breaking News http://ift.tt/2fvLRvb