A team of six has been chosen . . .
. . . to infiltrate the enemy's headquarters in the heart of the Australian Outback. The six teens have been modified to look like aliens. They have spent years mastering alien culture so that they can talk, act—even think—like their enemies. But from the start, the recon mission goes terribly wrong. It's only when they are close to discovering the shocking truth of the aliens' plans that the team is forced to ask:
Who among them is a traitor?
An excellent alien invasion story!
In the future (shortly before I can retire in 2038), the Earth has been taken over by aliens from Bzadia. It started with a plea from a small group to be allowed to take refuge in uninhabited areas of Australia, but before long they were attacking that area of the world and moving slowly and inexorably through Europe. Only the US has remained free, and the military there assembled a small team of teenagers who were modified to look like Bzadians and trained in their customs and language, as well as military tactics. They are parachuted into the Australian outback with a mission-- to find the base at Uluru and blow it to pieces. To do so, they have to confront actual Bzadians and also deal with a traitor in their midst. Only the leader, Ryan Chisnall, has figured this out and is trying to keep his team safe and the mission on track. When the group finally gets to Uluru, they find out a horrendous plan of the Bzadians, but do their best to save civilians involved and get their team out safely.