It's Intern Week at Prometheus Academy, and everyone is happy with their jobs - everyone except Hercules (voice of Tate Donovan) of course, who gets a job at a fast food joint. When Hercules asks his dad for help in getting a better job, Zeus gives him the job of guiding Apollo's (voice of Keith David) chariot across the heavens.

When King Salmanaous (voice of Jeffrey Tambor) impersonates Zeus, Zeus smites him for his gall. The good people of Thessaly, however, turn to Hercules for leadership and crown him as their new king instead.

Ares (voice of Jay Thomas) hatches a plan to overthrow his sister Athena's (voice of Jane Leeves) city-state and demands an ultimate weapon of destruction from Hephaestus, resulting in the creation of the Armageddon Bow. Knowing the weapon's capability and devastation it could cause, Athena asks Hercules to help find and destroy it.

When an assassination attempt on Pericles overlaps with Hercules' theft of a dangerous weapon from Phil's collection, it is Phil who is framed for the deed.

Cassandra has a dreadful vision of kissing Icarus and makes a deal with Hades to prevent it. However, when Hercules attempts to break the deal with the aid of Aphrodite, he sets in motion a series of interesting misunderstandings.

Hades makes a deal with Poseidon to to cede control of Athens, thus causing the city-state to becomes a place of gloom, and Prometheus Academy to become the epicenter of torment for students.

Hercules finds himself hired by a bunch of nerdy, abacus geeks to protect their town from rampaging centaurs.

Hippocrates, the father of medicine, comes to Athens and makes Hercules and Icarus his assistants for a week. Meanwhile, Hades, fearing a successful doctor will reduce the number of the dead, tricks Hercules into spreading The Plague throughout Athens.

Hades throws a pool party, and invites all the Gods to take a dip in the Waters of Forgetfulness: causing them lose to their memories. And with the Gods out of commission, the whole world is in chaos.

When Adonis wants a swimming pool, his servants awaken Gaia during construction. Angered by this, she curses Adonis to die before nightfall, who, in turn, begs Hercules for help.

Icarus' idea backfires when he and Hercules visit the Fates to persuade them into redoing their tellings so they can get concert tickets. However, when the Fates refuse, Icarus takes things into his own hands and gets the tickets anyway...

Hades enlists the aid of former hero Achilles to help him distract Phil from his trainings with Hercules, by returning Achilles to his former glory.

A three-day weekend festival celebrating Zeus' victory over the Titans is the place to be, but when Hercules accidentally frees the titan Typhon, the festivities are short lived.