Several years after the Na'vi repelled the Resources Development Administration (RDA) invasion, Jake Sully and his newfound family are living peacefully on the extrasolar moon Pandora. However, the tranquility is short-lived as the RDA, with other plans in mind, invades and captures Pandora again. Jake, compelled to protect his home, forms a guerrilla group, working closely with Neytiri and the army of the Na'vi race to try and expel the invading forces. As a familiar threat returns to finish what was previously started, they must all stand together to protect their home.