With the help of a woman marine pilot named Trudy (played by Michelle Rodriguez), they escape in a helicopter. They go to a nearby base to change into avatar mode. They then go to Hometree to see the Na'vi. Jake tells the Na'vi people that they still must fight. He joins with one of the Na'vi warriors to train them. Soon, more Na'vi come to defend their land. The marines choose to just destroy the Na'vi rather than try and move them. Many people do not think this was right. They think it is inhumane. These people are not listened to and the Marines went to attack the Na'vi. There is a very large battle between the Marines and Na'vi. When it looks as if the marines are going to win, many of the animals of Pandora join the battle. They fight with the Na'vi against the marines. Near the end of the battle, Jake, in his avatar, fights Parker Selfridge. When he is almost dead, Neytiri saves him. The Na'vi eventually win but many die. After the battle, the Marines are sent home to planet Earth. Jake Sully is changed into his avatar permanently and becomes the leader of the Na'vi with Neytiri.