Prepare for trouble on eight legs, as adorable little hound Buddy has found himself a ridiculously cute friend – another stray dog called Bob.

You’ll recognise him as Paddy, from Midsomer Murders, and between them the two cheeky terriers make the Doc’s life a misery.

It’s hilarious! While Martin tries to shake off his doggy friends, Morwenna is in for a shock when her parents Jack and Tara turn up on her doorstep unexpectedly (Jack is played by none other than Downton Abbey’s Molesley, Kevin Doyle).

Meanwhile, Ruth comes to the rescue for a struggling patient and Louisa is frustrated when Martin interferes with her studies.