Travelling with his young companion Ulysses, Herc's mission to stop a war is sidetracked by hypnotic Queen Umphala, while his wife Iole pines for him.
Beginning of the episode
"Raise High the Roof Beam, Carpenters" is a story by J. D. Salinger.
"We built this city on rock & roll" is the main lyric of the chorus to "We Built This City", by Starship (formerly Jefferson Starship, formerly Jefferson Airplane).