Demi-god Percy Jackson and his friends must journey into the Sea of Monsters to save their camp. But first Percy will discover a secret that makes him wonder whether being claimed as Poseidon's son is an honor or a cruel joke.

Despite the warnings of her friends at Mount Olympus Academy, Persephone befriends bad-boy Hades, but following her mother's advice to "go along to get along" complicates her relationships with all of them.

The Underworld usually isn't really meant to be a fun place - but tell that to Hades! He loves the dark and the stinky smell of sulfur. However, there is one thing that Hades is not a fan of: dogs. And when Zeus and his fellow Olympians encounter Cerberus - a snarling, three-headed dog - Hades must conquer his fears and tame the hound so everyone can continue into the Underworld and deposit their Titan prisoner, Oceanus, back where he belongs!

Two quests down, one to go! Then hopefully, King Eurystheus will finally forgive Hercules and not declare war on Mount Olympus. Zeus and Hercules have acquired the Amazon warrior queen's golden belt and the Hydra's scale. all that's left is to bring Cerberus, the three-headed guardian of the Underworld--gulp!--to King Eurystheus. Hopefully, Athena can get Hades to loan them Cerbrus until the quest is completed. But when the trio arrives at the Underworld,...

Taken from the gods as a newborn and adopted on earth, Hercules is just an awkward pillar of strength trying to fit in. What he wants most is to impress his father Zeus. When Hercules discovers Hades' sinister plot to take over Mount Olympus, he goes from zero to hero and, with the help of his pals Pegasus and Phil, discovers that real strength comes from the heart!