A Sharpei "wrinkle dog" named Sumo has a serious defect in his heart which could trigger cardiac arrest at any time, so he must undergo open heart surgery to repair the problem. A cow has such a nasty infection in her udder, she requires amputation of a teat. Exotics Resident Dr. Shrubsole treats a Red Eared Slider turtle with an eye infection. A dog won't stop gnawing on the end of his tail, so the vet team amputates part of it, in the hope the dog will stop his destructive habit.