All year the half-bloods have been preparing for battle against the Titans, knowing the odds of a victory are grim. Kronos's army is stronger than ever, and with every god and half-blood he recruits, the evil Titan's power only grows. While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods...

With a giant spiderweb in the sky with the words "Surrender Olympians" written in it, Zeus and his friends know they are in for a fight, but the webs actually contain a hidden gem, Athena's magical item.

Ten-year-old Zeus is kidnapped by the terrible Titans, merciless giants who enjoy snacking on humans, and when, in self-defense, he pulls a magical thunderbolt from a stone, he begins an adventure to rescue his fellow Olympians from the evil Cronus.