Tonight's episode of The Highland Vet proves to be a challenging one for the stars of the show with plenty mysteries to solve.

Vet Margaret is called out to a farm in Castletown and the result of her visit will define the outcome of local farmer James Allan's next calving season as well as profits and his entire year. She is one of only a handful of vets qualified for the tricky and dangerous job of semen testing bulls in the Highlands.

Practice Director Guy Gordon has a troubling case to resolve when owner Richard arrives with his three-year-old miniature bull terrier Bonnie. Bonnie is a serial wood eater and is constantly eating branches and roots whilst out on walks. It seems she has been up to her old tricks resulting in an internal injury.

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Vet Rebecca has a puzzling mystery to solve when part time farmer Jacky arrives with a lame newborn lamb. Jacky suspects the poor lamb has suffered a broken leg inflicted accidentally by her mum but on investigation, Rebecca begins to realise the lameness may have an entirely different explanation.

And at the small animal wing of the practice, vet Eilidh must evaluate the injury of six-month-old pet rabbit Cookie who has arrived with a head wound owner Caroline believes has been caused by another of her pet rabbits. Eilidh decides emergency surgery is required but must hand over the case to night shift vet David.

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