DropZone by Andy McNab (author) (UK edition)

A skydiving spy spectacular from ex-SAS hero Andy McNabb! Ethan Blake is seventeen and desperate to escape from his dead-end life. But when he sees someone base-jump from the top of his block of flats, it changes the way he sees the world forever. Soon Ethan is caught up in the adrenaline-fuelled world of skydiving. He’s a natural, so it’s no surprise when he’s invited to join an elite skydiving team. But is he signing up for more than just jumping out of planes? The team’s involved in covert military operations – missions that require a special kind of guts. Missions so secret even MI5 denies all knowledge…