We're going to follow the progress of two litter sisters - Bronwen and Scylla - as they learn to become sheepdogs.
They might have the same parents, but their temperaments are very different and the same goes for their attitude to working sheep.
In this first part we learn about the two young dogs. We see one of them working nicely in the field, while the other's approach seems to be "the best form of defence is attack"!
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