The CW
Jonathon Dornbush
May 15, 2015 AT 06:03 PM EDT

The Flash speeds into its first season finale—after last week’s already epic episode—with what looks like a slew of emotional moments for the S.T.A.R. Labs gang.

The CW has released a new extended look at the finale, “Fast Enough,” promising that even though Wells-turned-Eobard Thawne may be locked up, he is by no means defeated. 

The teaser also offers a look at the return of both halves of Firestorm—including what looks like quite the happy moment for Ronnie and Caitlin. The trailer ends with another glimpse at the moment Barry has been working toward all season long: saving his mother from her fated death.

The Flash finale airs May 19 on The CW. For more on the show, read EW’s latest recaphear directly from the Reverse-Flash himself on what’s to come.

The CW

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