The orang-utans are separated because of their bad behaviour, two stolen monkeys are dumped on the sanctuary's doorstep, and an operation suffers a serious setback.
Charlie and Pacito are given their last chance to make friends when they meet the bachelor boys, whose reputation for causing mayhem is well known. Rodney's fake termite mound proves to be a roaring success.
Jim Cronin mounts an undercover rescue mission in response to reports that a troop of illegally smuggled chimps has been discovered at a seaside resort.
Jim and Alison Cronin make a horrific discovery when they try to rescue a monkey from a pet shop, while the rest of the nursery team lets its new recruit venture outside.
Jim and Alison Cronin fly to Dubai to rescue three-year-old chimp Honey, who has been living at the royal palace. Baby Seamus goes to stay with Gordon the orang-utan - and picks up a few bad habits in the process.