One U.S. Air Force sergeant dad who knows nothing about kids. One free-spirited London boy raised by a peace-activist grandmother. One AI-enabled toy robot with dreams of glory... What could go wrong?

After his gran falls ill, Kai is sent to America to live with a father he's never met. Then one day his dad goes missing, and the FBI shows up at school. Kai and his friends must now confront the sinister forces behind the sergeant's disappearance. With the world on the brink of war, Kai's search for his missing father becomes a last-ditch quest for peace.