| "The Last Temptation of Barry Allen" | |
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| The Flash episodes | |
 The ending card for part 1, which is also the title card for part 2 | |
| Episode nos. | Season 6 Episodes 7 and 8 |
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"The Last Temptation of Barry Allen" is a two-part story comprising the seventh and eighth episodes of the sixth season of the American television series The Flash, based on the DC Comics character Barry Allen / Flash, a crime scene investigator who gains superhuman speed, which he uses to fight criminals, including others who have also gained superhuman abilities. The series is set in the Arrowverse, sharing continuity with the other television series of the universe, and is a spin-off of Arrow. The first part was written by Jonathan Butler and Gabriel Garza, and directed by Chad Lowe. Part two was written by Kristen Kim and Joshua V. Gilbert, and directed by Michael Nankin.
Grant Gustin stars as Barry, and is joined by principal cast members Candice Patton, Danielle Panabaker, Carlos Valdes, Hartley Sawyer, Danielle Nicolet, Tom Cavanagh, and Jesse L. Martin. The first part, titled "The Last Temptation of Barry Allen, Pt. 1", sees Barry being affected with a hallucinogenic contagion by Ramsey Rosso. The second part, "The Last Temptation of Barry Allen, Pt. 2", revolves around Team Flash's efforts to save Central City from Rosso's army of zombie-like creatures.
The first part premiered in the United States on The CW on November 26, 2019, followed by the second part on December 3, 2019. The episodes received generally positive reviews from critics.