Four years on from discovering their true heritage, Sally and Luke have overcome their animosity to forge a trusting brother-sister relationship. So when Luke returns home from the Hong Kong police force, he asks Sally for help to prove the innocence of his friend Irish. But Sally already has her hands full. As well as tending her flourishing business empire, she must also pick up the pieces when her family - from her feckless sister Josie to her self-centred daughter Margo - runs into trouble. Moreover, she must put her own dreams on hold because the man she loves is not free to be with her.