After the incredibly shocking penultimate episode of Season 2 Tuesday, the game has changed for the hero of the CW’s “The Flash” from a quest for justice to a quest for vengeance. In Season 2, episode 23, titled “The Race of His Life,” there’s nothing standing between the scarlet speedster and the villain who hurt him worse than anyone else.

[SPOILER ALERT: The remainder of this article will discuss the most recent episode of “The Flash.”]

When Zoom (Teddy Sears) returned to Earth-1 and crashed the team’s celebration dinner, Barry Allen (Grant Gustin) had to watch as the villain brutally murdered his father, Henry Allen (John Wesley Shipp), in the same spot the hero had to watch his mother die when he was a child. With Barry more enraged by the principal bad guy of Season 2 than ever, the final showdown is about to commence. If you don’t believe it, the episode’s official short and sweet plot synopsis may convince you: “After Zoom reveals his true plan, Barry vows to do whatever it takes to stop him.”

Fortunately for fans of the series, the Season 2 finale’s teaser trailer offers a bit more information about what they can expect when the episode airs. A great deal of the latest episode focused on Barry exhibiting confidence in his team’s ability to stop Zoom. The villain attempted desperately to corrupt him, and the clip appears to show that he succeeded. Fueled by rage over what happened to his dad, Barry isn’t thinking clearly, and Harry (Tom Cavanagh) tries to convince him that if he doesn’t get his head on straight, he’ll lose to Zoom even in the event he has the superior speed.

Speaking of speed, Zoom approaches Barry not for fisticuffs but for a footrace. It’s unclear why the villain needs two speedsters running about the city or why Barry agrees, but it’s clear the audience will get to figure out which of the two actually is the fastest man alive.

To find out how the Season 2 adventure wraps up, fans can tune in to “The Flash” finale on the CW Tuesday, May 24, at 8 p.m. EDT. Meanwhile, fans can check out the trailer below.