John Lennon's childhood. Liverpool 1955: a smart and troubled 15-year-old is hungry for experience. In a family full of secrets, two incredible women clash over John: Mimi, the buttoned-up aunt who raised him, and Julia, the prodigal mother. Yearning for a normal family, John escapes into the new and exciting world of rock 'n' roll where his fledgling genius finds a kindred spirit in the teenage Paul McCartney. Just as John begins his new life, tragedy strikes. But, a resilient young man finds his voice -- and an icon explodes into the world.