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The Flash: Season4 | Episode18
Lose Yourself
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.
S4 - E1The Flash Reborn Oct. 10, 2017
S4 - E2Mixed Signals Oct. 17, 2017
S4 - E3Luck Be a Lady Oct. 24, 2017
S4 - E4Elongated Journey Into Night Oct. 31, 2017
S4 - E5Girls Night Out Nov. 07, 2017
S4 - E6When Harry Met Harry... Nov. 14, 2017
S4 - E7Therefore I Am Nov. 21, 2017
S4 - E8Crisis on Earth-X (III) Nov. 28, 2017
S4 - E9Don't Run Dec. 05, 2017
S4 - E10The Trial of The Flash Jan. 16, 2018
S4 - E11The Elongated Knight Rises Jan. 23, 2018
S4 - E12Honey, I Shrunk Team Flash Jan. 30, 2018
S4 - E13True Colors Feb. 06, 2018
S4 - E14Subject 9 Feb. 27, 2018
S4 - E15Enter Flashtime Mar. 06, 2018
S4 - E16Run, Iris, Run Mar. 13, 2018
S4 - E17Null and Annoyed Apr. 10, 2018
S4 - E18Lose Yourself Apr. 17, 2018
S4 - E19Fury Rogue Apr. 24, 2018
S4 - E20Therefore She Is May. 01, 2018
S4 - E21Harry and the Harrisons May. 08, 2018
S4 - E22Think Fast May. 15, 2018
S4 - E23We Are The Flash May. 22, 2018