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The Flash S4E22 — Think Fast

7.8

The Flash•Season 4•Episode 22

Think Fast

7.8/10 · 3,053 votesMay 15, 201841 min

Ranked #9 of 23 in Season 4•+0.3 vs season avg

When DeVoe assaults an A.R.G.U.S. facility to complete his Enlightenment Machine, Barry realizes the only way he can stop him is if he allows Cisco and Caitlin to accompany him into the facility. Still shaken by Ralph’s death, Barry isn’t sure he wants to risk

Directed byViet Nguyen

Written bySam Chalsen, Kristen Kim

Previous episodeE21 · Harry and the Harrisons Next episodeE23 · We Are The Flash

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

Viet Nguyen

Viet Nguyen

Director

S

Sam Chalsen

Writer

K

Kristen Kim

Writer

A

Alwyn Kumst

Director of Photography

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Episode Summary

"Think Fast" is episode 22 of The Flash season 4. It scored 7.8/10 from 3,053 votes, ranking #9 of 23 episodes this season (season average 7.5). Directed by Viet Nguyen and written by Sam Chalsen, Kristen Kim, it aired on May 15, 2018.

Next: E23 · We Are The Flash Best of Season 4