A one-ton bull needs a foot trim, but is reluctant to lie down for the procedure, so Peter has to approach its feet very carefully to avoid his patient falling on him. Julian and Katy operate on a beagle with damaged ligaments, and a cat undergoes a caesarean section - a procedure that is very rarely used on feline patients. The Greens release their calves and donkeys into the field together for the first time, and a tortoise displays a loss of appetite