Drama series. Twelve-year-old Jed and best friends Christie and Zara all live on an army base. They like exploring the woods, dodging authority figures, playing games of soldiers and enjoying the freedom that goes with growing up in a secure environment. Until one day warnings appear on signs in the woods, and Zara becomes strangely secretive. The friends finally meet a strange boy who has been lurking in the woods. He makes an astonishing claim - he's an alien from another planet and the old armoured vehicle in their den is actually the space ship he arrived in. He needs their help.