24 hours to save the world...and get home for dinner. Meet Zac Power - the ultimate boy hero with a secret spying career. No mission is impossible for him. Zac tracks down the enemy and saves the day every time. He has super-cool gadgets: an amphibious submersible vehicle, total knock-out tissues to put the enemy to sleep, a mini-fighter jet and a stink bomb - to name but a few. Who is attacking the world's petrol tankers in the freezing Great Icy Pole? How can Zac find the Vanishing Tomb and rescue a secret agent? Can Zac stop a villianous spy agency from stealing gold bars from the world's most secure bank? How will Zac get to the sea-bed to protect the top-secret information stored there? If anyone can, Zac can!