The Yellow Submarine and its crew, including Captain Fred and The Beatles, embark on a fantastical journey to save Pepperland from the music-hating Blue Meanies. Along the way, they encounter various surreal landscapes and characters, including Jeremy Hillary Boob Ph.D. They ultimately rally the land to rebellion, defeating the Blue Meanies and their minions, and conclude with a grand finale featuring the four live-action Beatles singing "All Together Now".

Yellow Submarine
In this animated adventure, the Beatles embark on a magical journey aboard the legendary yellow submarine, joining forces with Captain Fred to liberate the mystical land of Pepperland from the tyrannical Blue Meanies, who aim to eradicate music forever.