When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.

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...

A boy awakens, blindfolded, with no memory of even his name, but soon meets Lord Umber, an adventurer and inventor, who calls him Happenstance and tells him that he has a very important destiny--and a powerful enemy.

A Dogg family and a Katt family are spending their vacations at Western Frontier Park fighting with each other when a youngster from each family becomes lost in the dangerous forest.