Arrow Sneak Peek: Barry Allen Geeks Out Over the Vigilante -- and Guesses Felicity's Secret!

Barry Allen, aka The Flash, has some theories about Arrow‘s bow-wielding hero, and they’re pretty on target. In fact, they may even be too close for comfort for Oliver, Felicity & Co.

In the following scene from this Wednesday’s episode (The CW, 8/7c), Barry shares with the IT gal his spot-on explanation for the vigilante’s green attire — and comes dangerously close to figuring out her secret double life, as well.

RELATED | Arrow Meets The Flash: 8 Things to Know About Barry Allen’s Introduction — and His Future

But while Barry may seem like just a fanboy, the young man’s interest in all things vigilante is actually driven by his tragic history. Press play below for the full scoop!

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