The Flash
There Will Be Blood
Season 6, Episode 4 · Aired 2019-10-29

Synopsis
Nash comes to Barry and Cisco and ask them to build something for him in return for his getting them something they want. Meanwhile, Ralph stops investigating the Dearbon case, and Ramsey gains the key to curing his HLH.
In the series
This episode is part of The Flash (2014–2023) on The CW.
Scarlet speedster optimism — multiverse soap with heart-on-sleeve heroics.
Key cast
- Grant Gustin as Barry Allen / The Flash
- Candice Patton as Iris West
- Danielle Panabaker as Caitlin Snow
- Carlos Valdes as Cisco Ramon
- Tom Cavanagh as Harrison Wells
- Jesse L. Martin as Joe West