Hades decides to throw a pool party, and invites all of Olympus to take a dip in the Lethe Waters of Forgetfulness, causing them all lose to their memories. Meanwhile, with the gods out of commission the whole world is in chaos.

A three day weekend festival that celebrates Zeus' victory over the evil Titans occurs but when Hercules accidentally frees the titan Typhon, he doesn't feel much like celebrating.

The gang's in Atlantic City this summer, and everybody is having a great time except for Cassandra, with her dismal visions of the future. When a news reporter discovers her, and, no visions coming, she tells him (eg: lies) about the upcoming sinking of Atlantis.

We see how the Greek Gods got their position when helping to build Greece. Morpheus' younger brother Phantasos makes a blanket of nightmares to drag through the night sky giving everyone nightmare because he should've been made The God of Sleep instead of Morpheus. The mortals' nightmares start to concern all the Greek Gods including Morpheus. It's up to Hercules and Phil to stop Phantasos' plot in their shared dreams.

Taking place after the Hercules movie, Hercules is moving his stuff from Phil's old place to his new place. While looking through the old stuff, Meg finds Herc's old yearbook. Hercules, not wanting to be embarassed, takes the yearbook, and hides it. Meg finds it, and we are shown a clipshow of past episodes, ending with a musical number.

A cimpilation episode in which Hercules and the cast are the guests on the Merv Griffin Show -- hosted by, of course, a giant griffin (and voiced by Merv himself).

Zeus and hera are having an argument that got started because Zeus forgot thier aniversary. Hercules thinks thinks he is the reason they are fighting after Zeus is gruff with him so he begins putting himself into deadly situations to prove himself. Meanwhile Hades tricks both Zeus and Hera into leaving Mt. Olympusand he takes control of it.