Spider does not die in Avatar: Fire and Ash; he survives the film but is biologically altered so he can breathe Pandora’s air, which creates a major cliffhanger about his future and makes him a target for RDA experimentation[1][2].
Essential context and supporting details
– What happens to Spider in the movie: Spider’s oxygen mask fails during a crisis and Kiri uses her growing connection to Eywa to alter his biology so he can breathe Pandora’s atmosphere without a mask, effectively creating a symbiotic bond between him and Pandoran flora that gives him a queue-like connection[1][2].
Sources reporting this plot point describe the change as a fusion or symbiosis that cannot be safely reversed, which is why the RDA wants to study him[1][2].
– Why his survival matters: Because Spider’s new biology shows humans might be able to live on Pandora without life-support, the RDA sees him as a way to remove the biggest barrier to full colonization, making him strategically vital and dangerous for the Na’vi[1][2][5].
– Jake Sully’s reaction and narrative stakes: Jake briefly considers killing Spider to prevent the RDA from reverse-engineering the change, but cannot bring himself to do it; Spider is instead captured at one point and subjected to experiments, leaving his safety and Pandora’s future unresolved going into the next films[1][3][5].
– What this means for Avatar 4: The film ends with Spider alive but transformed and sought after, which sets up Avatar 4 to explore whether the RDA succeeds in learning from him, whether Spider’s condition can be replicated, and how the Na’vi will respond to that existential threat[1][2][5].
Sources
https://www.gamesradar.com/entertainment/sci-fi-movies/avatar-fire-and-ash-ending-explained-who-dies/
https://www.esquire.com/uk/culture/film/a69825779/avatar-fire-and-ash-ending-explained/
https://www.youtube.com/watch?v=7Yp6VBlDGZk
https://www.youtube.com/watch?v=izE9KJgKiUc
https://screenrant.com/avatar-fire-and-ash-spider-role-important-explained-james-cameron/


