Ken and Lorna are looking forward to seeing daughter Rachel again when she returns from her gap year, but are surprised when she introduces them to her new husband - travelling hippie and huge goon, Cuckoo. Ken struggles to find something to like about his new son-in-law before being pushed into a somewhat radical course of action.

Ken is keen to lay down some ground rules for Cuckoo in the Thompson house and proposes a family meeting, but getting his own way has knock-on effects.

Ken is delighted to be picked as a local councillor. Naturally, Cuckoo has some advice.

Ken is afraid that Cuckoo will send his beloved father-in-law Tony to an early grave.

Self-appointed guru Cuckoo manages to motivate Lorna's best friend Connie to leave Steve and pursue her childhood dream of becoming a singer.