Humans have returned to Pandora with an armada of starships but Jake Sully and the Na'vi are ready for them! Knowing this day would come, Jake has trained his Na'vi warriors with a plan that should make it too costly for the humans to try again . . . if the plan works.

But, any chain of events is only as strong as the weakest link, and in this case the weak link is human nature. As the plan unravels, Jake and Neytiri must race against time to return to Pandora and save their children before the starships land.