The Flash 2×21 “The Runaway Dinosaur” Official Synopsis

The Flash 2×21: Kevin Smith Directs

The CW released the official episode synopsis for The Flash 2×21 titled, “The Runaway Dinosaur,” written by Zack Stentz and directed by Kevin Smith. Check out all the details on the upcoming new episode below.

The Flash 2×21 airs Tuesday, May 10, 8/7c on The CW.

Official Synopsis:

With Barry (Grant Gustin) gone, the team must figure out a way to handle the return of an old enemy – Girder (guest star Greg Finley). Realizing Girder is retracing his steps from his last attack, Iris (Candice Patton) volunteers to act as bait to trap him in S.T.A.R. Labs. Meanwhile, Barry fights to return to his old life.