| "Duet" | |
|---|---|
| Series The Flash Season 3, Episode 17 | |
| File:Flash 2014 3x17 001.jpg | |
| Air date | March 21st, 2017 |
| Writers | Brooke Roberts; David Kob; Andrew Kreisberg |
| Director | Nina Lopez-Corrado |
| Producers | Geoff Garrett; Jennifer Lence; Carl Ogawa; Brooke Roberts; Glen Winter; JP Finn; Andrew Wilder; Benjamin Raab; Derec A. Hughes; Sarah Schechter; Aaron Helbing; Todd Helbing; Andrew Kreisberg; Greg Berlanti |
| Starring | Grant Gustin; Candice Patton; Danielle Panabaker; Carlos Valdes; Keiynan Lonsdale; Tom Cavanagh; Jesse L. Martin |
| Episode guide | |
| Previous "Into the Speed Force" |
Next "Abra Kadabra" |
"Duet" is the seventeenth episode of season three of the live-action superhero fantasy series The Flash, and the sixty-forth episode of the series overall. It was directed by Nina Lopez-Corrado with a script written by Brooke Roberts and David Kob based on a story treatment by Andrew Kreisberg. It first aired on the WB Network on Tuesday, March 21st, 2017 at 8:00 pm. In this episode, a futuristic criminal refugee from Earth-19 named Abra Kadabra comes to Earth-1 and begins committing crimes. Bounty hunter Gypsy comes trailing after him. Barry takes particular interest in Kadabra as the villain has insight that could be used to save Iris' life. Caitlin Snow suffers a mortal injury and the only way to save her is by reverting her to her Killer Frost identity.