Claudia Muldoon and her sister, Jenny, live with their parents and their gran in her house in Blodwen Street. Both parents have good jobs and the family assume they are settled for life, but then Grandpa Muldoon has a seizure and begs his son to return to Ireland.

In Ireland the Muldoons flourish and the girls love the freedom of their new life, though as they grow up, disadvantages become clear. Claudia has to find work, so both sisters return to Liverpool and to their old pal Danny, who welcomes them back with delight. But both girls' lives take an unexpected turn when Danny's friend, the flamboyant and successful Rob Dingle, returns from America...