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The Flash S4E20 — Therefore She Is

7.4

The Flash•Season 4•Episode 20

Therefore She Is

7.4/10 · 2,937 votesMay 1, 201842 min

Ranked #15 of 23 in Season 4•−0.1 vs season avg

Barry and Team Flash team up with Gypsy to try to thwart Thinker's plan. Meanwhile, Cisco and Gypsy have a heart to heart talk about their relationship.

Directed byRob J. Greenlea

Written bySterling Gates, Thomas Pound

Previous episodeE19 · Fury Rogue Next episodeE21 · Harry and the Harrisons

Seasons9

All 1 2 3 4 5 6 7 8 9

Cast6

Grant Gustin

Grant Gustin

Barry Allen / The Flash

Candice Patton

Candice Patton

Iris West-Allen

Danielle Panabaker

Danielle Panabaker

Dr. Caitlin Snow / Killer Frost

Carlos Valdes

Carlos Valdes

Cisco Ramon / Vibe

Tom Cavanagh

Tom Cavanagh

Harrison 'Harry' Wells

Jesse L. Martin

Jesse L. Martin

Joe West

Crew4

Rob J. Greenlea

Rob J. Greenlea

Director

S

Sterling Gates

Writer

T

Thomas Pound

Writer

A

Alwyn Kumst

Director of Photography

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Episode Summary

"Therefore She Is" is episode 20 of The Flash season 4. It scored 7.4/10 from 2,937 votes, ranking #15 of 23 episodes this season (season average 7.5). Directed by Rob J. Greenlea and written by Sterling Gates, Thomas Pound, it aired on May 1, 2018.

Next: E21 · Harry and the Harrisons Best of Season 4