Barry Allen (Grant Gustin) has gone back in time to reunite with his parents this season on The Flash, but as everyone knows, time travel has consequences, which Barry is going to learn the hard way in the Season 3 premiere.

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Barry's time-meddling will cause a massive schism in one of the show's central relationships, and the Flash's super-speed might not be enough to fix it. Here's hoping he enjoyed his brief time with his folks, because it may have permanently ruined the lives of two of the people closest to him.

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