It's Intern Week (which means a week off in the Real World), and everyone is happy with their jobs - everyone except Hercules, who's stuck in the fast food joint. When Hercules asks his dad for help in getting a better job, Zeus gives him a job guiding Apollo's chariot across the heavens.

Hades makes a deal with Poseidon to hand over Athens, in order to rule the whole country, causing Athens to becomes a place of doom and Prometheus Academy to become the home base of torment for students.

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.

Adonis, the school bully, is making life miserable for Hercules, and not even a little fatherly encouragement can cheer him up. So Zeus decides to turn himself into a teen for 24 hours to find out exactly what life is like for his son.