So Long and Goodnight (2020)
Episode of The Flash

After Black Hole hires Rag Doll to kill Joe, Singh suggests he go into the witness protection program; Ralph runs into Sue; Iris becomes suspicious of Eva. (imdb)
Cast and Information
Season: 6, Episode: 16 - Episode Guide
Directed By: Alexandra La Roche
Written By: Thomas Pound, Kristen Kim
Starring: Tom Cavanagh, Patrick Sabongui, Jesse L. Martin, Grant Gustin, Danielle Nicolet, Natalie Dreyfuss, Efrat Dor, Carlos Valdes, Candice Patton, Hartley Sawyer, Kayla Compton, Victoria Park
Genres: Drama, Sci-fi, Action, Adventure