The film tells the story of seven high school students who went to a remote town for a camping trip. When they returned home, they found that Australia had been plunged into war. They had to take up arms and fight back... Ellie went camping with his good friends Omo, Takam, Kevin, Corey, Robin and Fiona. A week later, they returned from the camping site. But when they returned to the city, they found that people in the city were constantly disappearing, and the pets and livestock that people fed were constantly dying. At this time, this group of young people realized that their families who went to the memorial festival carnival might never come back. Fortunately, Corey's father sent a fax back from the carnival earlier. He warned his children that his country was suffering from an armed invasion and the whole country was in chaos. He hoped that his children could find a place to hide. After seeing the fax, these young people immediately went to their homes to see if there were any family members alive. But Robin and Katam never came back. At the same time, Ellie, Kevin and Corey were chased by the invading army. In the process of resistance, Ellie killed three soldiers with a lawn mower, but he was also injured. In desperation, they had no choice but to hide in Corey's house. At this time, enemy bombers began to bomb the area, and they seemed to want to kill all these young people. Ellie and Omo finally decided to find Robin and Katam. They found them in a small ditch in a low-lying area. The reason they couldn't return was that Katam's leg was shot. During the escape, they found another surviving friend, Chris. Chris hid at the beginning of the invasion and finally saved his life. The five good friends found other people hiding near Corey's house - from now on, they would join hands to deal with the invaders. The city was no longer safe, so they had to flee back to their camp. Omo thought of a way to temporarily save himself, burning a wooden bridge from the city to the camp. So they found some fuel and prepared to burn the bridge. In the process of implementing this plan, Corey was shot. While hesitating in the safe house, Kevin volunteered to send Corey to the enemy's hospital, hoping that they could treat Corey's injuries. In this way, the eight good friends split into two groups. Kevin left with Corey, and the remaining six drove a stolen car into the campsite to continue their guerrilla struggle.