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The ad, which integrates footage from past and future episodes of both shows, centers largely on the superheroes and -villains of the Arrowverse, ranging from Captain Cold and the Reverse Flash to Atom and Black Canary.
And, yes, we get quite a good bit of Firestorm footage, including numerous shots of Victor Garber in costume as Dr. Martin Stein.
You can check it out below.
The Flash airs Tuesdays at 8 p.m. ET/PT, followed by Arrow Wednesdays at the same time, on The CW.
