It's been nearly two years since Cuckoo's disappearance and life in the Thompson family house is only now getting back to normal. Ken and Lorna are looking forward to a life without the children under their feet. Dylan. Cuckoo's absence is still felt though not least by his young widow, Rachel. The sudden arrival of mysterious stranger Dale manages to mess up life in the Thompson household once again.
When Ken and Lorna collect their daughter Rachel from the airport, they're horrified to learn that she's returned from her gap year with more than just a henna tattoo and braids in her hair.
At the arrival gate, she promptly introduces them to her new husband, Cuckoo - the squared-jawed, self-appointed "spiritual ninja" who is now their son-in-law. Cuckoo is every parent's worst nightmare - a slacker full of outlandish, New Age ideas.
Ken and Lorna have no choice but to welcome him into their family home - and if every Englishman's home is his castle, then this hippie has stormed Ken's fortress and plundered everything, most unforgivably, his princess.