Alison Cronin and her colleagues prepare to transport an overweight orang-utan from South Africa back to the Monkey World rescue centre in Dorset. The task poses plenty of logistical challenges, but matters are further complicated when the experts discover the creature has developed unusual habits.

Oshine has an eventful first night in the orang-utan nursery, and Jeremy Keeling realises helping the new arrival settle in will not be a straightforward task. There is also exciting news at the woolly monkey house, and Hanyana and the chimpanzees are released into their revamped enclosure for the first time.