The Flash
Season 3 Episode 20: “I Know Who You Are”
Directed by Hanelle Culpepper
Written by Bronwen Clark & Joshua V. Gilbert
Starring Grant Gustin, Jesse L. Martin, Danielle Panabaker, Candice Patton, Carlos Valdes, Tom Cavanagh, Keiynan Lonsdale, Tom Felton
Created by Greg Berlanti, Andrew Kreisberg, Geoff Johns
The CW
Air Date: Tuesday, May 2nd, 2017, 8:00pm

Last week on The Flash, Barry (Grant Gustin) went to the year 2024 to find out who Savitar really is. Future Cisco (Carlos Valdes) was super happy to see him. He wanted to get the gang back together, because after Iris (Candice Patton) died, Barry went in a downward spiral. And he never did find out Savitar’s identity. Barry went to return to 2017, but got stuck and helped Cisco reunite everyone. They defeated 2 metas, and Future Barry gave Barry some tech that may help save Iris.

Spoilers below.