The season two finale of

From unveiling the identity of the mysterious man in the iron mask to Flash's final battle with Zoom in form of a race, check out five things that happened in shocking episode.

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1. The mysterious man in the iron mask and Zoom’s prisoner was revealed to be the real, Earth-3 version of Jay Garrick, played by  John Wesley Shipp (Barry's Father - Henry).

2. Zoom challenged Barry to a race, threatening to kill Joe if he declined, but help power a weapon that would destroy the multiverse if he accepts.

Barry races against him, and somehow came up with a plan that helped him get Zoom out of the picture, without killing him.

3. Wally finally found out about Barry.

4. Iris is finally ready for a relationship, unfortunately, Barry thinks he is lost and needs to fix himself. Iris promises to wait for him, and the two share the long-over due kiss.

5. Finally, the shocking twist came when Barry actually ran back in time to the night of his mother's death, and decided to save her - erasing the whole timeline.

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"The Flash" stars Grant Gustin as Barry Allen/The Flash,Candice Patton as Iris West, Rick Cosnett as Eddie Thawne, Danielle Panabaker as Caitlin Snow, Carlos Valdes as Cisco Ramon, Jesse L. Martin as Detective Joe West, Teddy Sears as Jay Garrick, Keiynan Lonsdale as Wally West, Shantel VanSanten as Patty Spivot,Violett Beane as Jesse Quick, Demore Barnes as Tokamak, and Tony Todd as Zoom.

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Watch season 2 finale promo clip below.