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English Stan the lodger is dead and Dad wants a new replacement, but Gwynne says no, until an american named Randy turns up and saves the day.
Gwynne borrows an executive toy from work which goes missing at the same time that local bad boy Spike Malarky turns up in the club.
Dad eats too many pickled eggs and starts to dream.
Randy wants a new bed, but Idris won't budge on the idea. Postman Pat takes Moira to Southerndown for a day out, which makes Gwynne jealous, and Mandy and Randy become a couple.
Dad is suffering from a bad case of boils, and Randy's alternative treatment causes Idris to have a visit from an old friend.
Randy starts looking for a job, so that he can stay in Wales, and Bridget is frightened by a group of dwarfs with machetes.
Mandy wants Randy to prove that he loves her, but the men want to watch the international rugby match on the tv.