S1, E4: Six-month-old puppy Ice has been rushed to Noel's referral centre having been trampled by a horse. Noel tries to reconstruct the dog's shattered leg as he battles the infection caused by the horse's hoof. There are concerns, too, for Gatwick sniffer dog, Neo. He's been compensating for a serious knee problem in one of his back legs and requires significant surgery. Plus, there's an update on Lottie.