The Flash Season Finale Clip: Why Did You Kill My Mother?

05/18/2015 02:05 pm EDT

The CW has released a new clip from the season finale episode of The Flash, "Fast Enough."

The clip has Barry Allen finally asking Eobard Thawne the question he, and everyone else, wants to know: why did Thawne kill Barry's mother?

Check it out below.

In "Fast Enough," Wells (Tom Cavanagh) presents Barry (Grant Gustin) with a life-changing choice. Dr. Martin Stein (guest star Victor Garber) and Ronnie Raymond (guest star Robbie Amell) return to help the S.T.A.R. Labs team with this final fight.

The Flash Season 1 finale, "Fast Enough," airs Tuesday, May 19 at 8 p.m. ET on The CW.

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