On the Set: Arrow and Flash Stars Reveal Crossover Secrets

If you've ever wondered who would win in a fight between the Arrow (Stephen Amell) and The Flash (Grant Gustin), you're in luck: The two superheroes are facing off in part one of the Arrow and Flash crossover episodes.

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But besides seeing our heroes try to bash each other to pieces for fun, Tuesday and Wednesday's crossover episodes will also be major learning experiences for both characters "It's a great journey for Team Flash because they're forced to address the reality of what they're doing," Danielle Panabaker told TVGuide.com during a recent visit to the set of The Flash." When we're in S.T.A.R. Labs it's easy to call Barry and make him run and do super-fast things and save people while we're behind the safety of our computer screens. And when we're on Arrow, it's a totally different story. Everything's much more visceral and present and immediate."

Team Arrow will also learn a lot from their Central City counterparts -- the least of which is the existence of metahumans in their midst. For more secrets, click play below:

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The Arrow-Flash crossover episodes air Tuesday and Wednesday at 8/7c on The CW. (Full Disclosure: TVGuide.com is owned by CBS, one of The CW's parent companies.)