![The Flash Season 4 Episode 18 The Flash Season 4 Episode 18](https://image.tmdb.org/t/p/w185/lUFK7ElGCk9kVEryDJHICeNdmd1.jpg)
The Flash Season 4 Episode 18
When Barry and Team Flash find a way to enter The Thinker’s lair, Ralph considers crossing a dangerous line to defeat DeVoe. Meanwhile, Joe is concerned by Harry’s recent behavior.
Serie: The Flash
Director: Hanelle M. Culpepper
Guest Star: Arturo del Puerto, Bethany Brown, Hartley Sawyer, Kim Engelbrecht, Leonardo Nam, Miranda MacDougall, Neil Sandilands