An exaggerated "Day In the Life" of the Beatlemania era Beatles. The foursome travel from train to hotel to television studio with their road crew, while "Grandfather" stirs up trouble, and even temporarily convinces one member to leave his responsibilities behind to go off "paradin'."

Pursued by their zealous teenaged fans, the Beatles--Paul, John, George, and Ringo--board a London-bound train to do a television program. They are accompanied by their manager, Norm, his assistant, Shake, and Paul's cantankerous and meddlesome grandfather, whose only attribute seems to be that he is "a clean old man." On the first evening in London, after visiting a twist club, the Beatles discover that Grandfather has bribed a butler out of his dress clothes and gone to a gambling club. There they find him making quite an impression on a good-looking young woman, and despite his protests they take him back to the hotel. At the television studio on the following day, production delays enable the Beatles to wander about, and consequently they become involved in minor incidents, much to the disgruntlement of the director. Grandfather, who has been badgering Ringo about his status in the group, finally succeeds in provoking the drummer to strike out on his own. The Beatles and their managers begin to search for the missing Ringo, but Grandfather finds him in a police station and runs to tell the others. They rescue Ringo and after a wild chase return to the studio just in time for the performance. At the end of the final number, Grandfather rises through the stage floor on an elevator. The Beatles board a helicopter for their next appearance.