When the music-hating Blue Meanies take over Pepperland and freeze everyone within it, including the protectors, Sgt. Pepper's Lonely Hearts Club Band, Captain Fred (Lance Percival) and his Yellow Submarine recruit The Beatles to help save Pepperland. Along the way, they fall through the Sea of Time, Sea of Nothing, Sea of Holes, and more. They meet Jeremy Hillary Boob Ph.D. (Dick Emery) and take him with them for the adventure. At Pepperland, The Beatles "rally the land to rebellion" and take down the Blue Meanies, the four-headed Meanie dog, and the Dreadful Flying Glove (with the songs "Sgt. Pepper's Lonely Hearts Club Band", "With A Little Help From My Friends", "Hey Bulldog", "All You Need is Love"). In the end, all four live-action Beatles sing "All Together Now".
Yellow Submarine
The Beatles agree to accompany Captain Fred in his yellow submarine and go to Pepperland to free it from the music-hating Blue Meanies.
