When Zak Archer accidentally witnesses a murder he immediately finds himself in the firing line. Now some very dangerous people want him dead and he is on the run. Luckily, running is something Zak is good at. In fact, when he's 'in the zone' he can run faster, jump further and fly higher than should be humanly possible. But will those skills be enough to save him? What exactly is the truth behind his friend's death? And in a world of spies, secrets and lies - who can he trust? The first in this gripping new series. Perfect for young fans of 24.