In the magical underwater paradise of Pepperland, music, colour and imagination have kept the world alive for generations. But when the music-hating Chief Blue Meanie launches an invasion with his bizarre army, Pepperland is silenced and frozen in darkness. Escaping aboard the legendary Yellow Submarine, the eccentric sailor Fred journeys to the human world to find the only people capable of saving it: The Beatles. Paul, John, George and Ringo embark on an extraordinary voyage through surreal dimensions including the Sea of Time, the Sea of Science and the Sea of Nothing where they encounter strange allies such as the brilliant but lonely Jeremy Hillary Boob, Ph.D. and the mysterious Lucy in the Sky with Diamonds. But as the Blue Meanies close in, the Beatles must discover whether music alone can defeat an enemy determined to erase imagination from the world forever.
