High summer, 1964 - and London has just started to swing. David Bailey makes love daily, the Beatles have played the Ed Sullivan Show and fifteen-year-old Ella Feast is embarking on a voyage of discovery aboard the Queen Elizabeth, the largest liner in the world. She?s heading for New York to meet the American father she barely remembers and his new wife.
Ella is an innocent aboard this mammoth vessel - the size of a town with a population to match. On dry land the old class system is crumbling, but it still flourishes on the great Queen. Stuck down on D deck in a shared cabin with no porthole, Ella?s glamorous visions of the voyage seem doomed. But that?s only until she unwittingly crashes the First Class gym for a session on the bottom-busting vibrator belt and meets Hen Thring.
Back home in a London heatwave, Ella?s mother Kitty faces a long solitary summer - while across the Atlantic, her pregnant stepmother Lynn uneasily awaits the arrival of this foreign teenage cuckoo in her nest?