The story of Avatar happens in the fictional planet Pandora during the year 2154. The inhabited planet is rich in unobatanium, a mineral vital to Earth’s survival, which makes it a subject of interest for the humans. In order to interact with the beings who live there, called the Na’vi, humans need to transfer their consciousness to engineered Na’vi bodies called avatars.
Lead character Jake Sully (Sam Worthington) is a paraplegic ex-Marine officer who replaces his deceased twin brother in the program. He becomes one of the avatars. Together with Dr. Grace Augustine (Sigourney Weaver), he explores the planets and learns the ways of the Na’vi while spying for Colonel Miles Quaritch (Stephen Lang).
The Na’vi's gigantic and magical tree called Hometree lies above a large deposit of unobtanium. Quaritch asks Jake gather information about the people and the tree and promises to restore his legs through biogenetic s process if he succeeds. He befriends and falls in love with one of the Na’vi, Neytiri (Zoe Saldana) as he learns more about them and their ways.
Together with Dr. Grace, Trucy Chacon (Michelle Rodriguez), Norm Spellman (Joel David Moore) and their allies, they soon fought alongside the Na’vis to protect Eywa and their planet against Quaritch’s army. At the end of the movie, Jake is forced to permanently transfer his consciousness to his avatar.
The film continues to hold its place as the Top Grossing Film of All Time since its release in 2009. Production of the movie made use of the newest filming technology during that time and was considered a breakthrough. The language used by the Na’vi was also created by Paul Frommer specifically for the film.
Four more sequels have been in the work to continue the story of Jake, Neytiri, and their children, but delays have been holding the movies back. A lot of the reason for this is credited to creator and director James Cameron also writes for the film.