Chapter 21

"Chapter 21" is the second episode of the third season of the American cable television series Legion, based on the Marvel Comics character David Haller, and connected to the X-Men film series. It is the 21st overall episode of the series and was written by series creator Noah Hawley, co-executive producer Olivia Dufault, and co-producer Kate Thulin and directed by Carlos López Estrada. It originally aired on FX on July 1, 2019. The series follows David Haller, a "mutant" diagnosed with schizophrenia at a young age. Struggling to differentiate reality from fantasy, Haller tries to control his mutant powers and the sinister forces trying to control them while evading a government agency, Division 3. Summerland and Division 3 eventually team up in order to catch Amahl Farouk from finding his original body. While Farouk was captured, David is now labeled as a threat and hunted down, prompting him to escape. In the episode, Danny finds that Switch's powers won't allow him to pass the barrier to time travel, prompting him to get help from Cary. According to Nielsen Media Research, the episode was seen by an estimated 0.381 million household viewers and gained a 0.1 ratings share among adults aged 18–49. The episode received mostly positive reviews from critics, who praised the character development, performances and directing. Plot After teleporting the compound, David (Dan Stevens) talks with Switch (Lauren Tsai) about her time travel powers. She opens a doorway to show it, but David is unable to enter, despite Switch attempting to get him inside.