While eating with Ptonomy (Jeremie Harris), David is told that Summerland now works with Division 3 in capturing Farouk, having convinced that most mutants aren't a threat.
In March 2018, it was reported that the first episode of the season would be titled "Chapter 9", and was to be directed by Tim Mielants and written by series creator Noah Hawley and co-executive producer Nathaniel Halpern.
[1] In its original American broadcast, "Chapter 9" was seen by an estimated 0.669 million household viewers and gained a 0.3 ratings share among adults aged 18–49, according to Nielsen Media Research.
The site's consensus states: "'Chapter 9' starts Legion's sophomore season with a deeper, more substantial arc while still retaining the show's splendid visuals and trippy narrative flourishes.
"[5] Ryan Matsunaga of IGN gave the episode an "amazing" 9.1 out of 10 and wrote in his verdict, "Viewers will likely spend most of 'Chapter 9' feeling more than a little confused, but that's arguably part of Legion's appeal at this point.
"[7] Alan Sepinwall of Uproxx wrote, "A broad smile crosses [this critics'] face upon thinking about the animated tale of the man who dreamed he was a butterfly (or vice versa), and how that led into more disturbing explanations of how an innocuous thought can lead to madness.
"[8] Evan Lewis of Entertainment Weekly wrote, "As season 2 progresses and it becomes clearer which mysteries are solvable and which are merely David's delusions, Hawley could invert all the soapy, pulpy clichés to deliver something awe-inspiring to an audience that thinks it knows what’s coming.
"[9] Oliver Sava of Vulture gave the episode a 3 star rating out of 5 and wrote, "The stylistic flourishes give these character interactions deeper substance, and ideally Legion will maintain this dynamic as it moves forward.
"[10] Ben Travers of IndieWire gave the episode an "A-" grade and wrote, "Hawley expertly controls the chaos to a point where finding our way out is a fun challenge, not an exhausting burden.
"[11] Nick Harley of Den of Geek gave the episode a 3.5 star rating out of 5 and wrote, "If Legion can keep an emotional throughline up amongst all of the topsy-turvy trippiness, it has potential to be one of the most memorable comic book adaptations ever attempted and proof of concept that these stories can continue to feel fresh.
"[12] Josh Jackson of Paste gave the episode a 9 rating out of 10 and wrote, "It's work to follow the convoluted plots and it takes an openness to the most outré imaginings.