Zac Power is on his first solo spy mission--finally! He's speeding to the bottom of the world's deepest ocean to protect a top secret high-tech deuice. It's been safely out of reach for gears., until now.The enemy built a new submarine that can diue deeper than euer before.

Can Zac destroy the sub, suruiue a giant squid attack, and still make it home in time to finish his homework?Or will he blow the entire mission?