Think Fast The Flash : Season 4 Episode 22
TV-PG The CW 43m int(0)
Aired: May 15th, 2018 @ 8:00 PM EST on The CW
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 any more of his friends’ lives and considers taking on DeVoe solo.