It's a big day for baby golden-cheeked gibbon Mikado as he's introduced to his new foster mum Alex, and Gordon's orang-utan group have a bit of fun with some colourful balls.
Tensions are high as popular chimp, Sammy, goes under the knife, and the stump-tailed macaque house gets a makeover to accommodate its elderly ugly monkeys.
It's handbags at dawn in the orang-utan nursery as new arrival Oshine meets foster mum A-mei. Piquita becomes a new mum, and Mikado settles in after his first week at the park.
Mike has a tricky time collecting a baby gibbon from France. Meanwhile, at Monkey World, the chimps have fun with fabric, and squirrel monkey Fidget settles into his new home.
Oshine has an eventful first night in the orang-utan nursery and there is exciting news for the woolly monkeys. Plus, Hananya's gang go wild over the revamped chimp enclosure.
There's a problem at the airport with the transportation of overweight orang-utan Oshine from South Africa - will she make it onto the plane?
The team wants to bring a seriously overweight orang-utan to the UK, but it is harder than they hoped, and back at Monkey World the Bachelor boys celebrate a bedding bonanza.
Paddy's chimps go mad for mangoes and rumours abound of a weighty new arrival from South Africa. Plus, Alison saves an old pet squirrel monkey that desperately needs a new home.
The new orang-utan nursery is finally open but, despite a storm, new mum Hsiao-Quai refuses to bring her baby indoors.
There is cause for celebration in the orang-utang house, while the world's oldest woolly monkey has a very bad day.
Alison goes undercover in order to save a chimp who has been forced to work as a photographer's prop in Turkey.
Veterinarian Mike tailors a designer jacket for Bruce the capuchin, while baby Tia-Nang shows her mum that she's all grown up.
Charlie the monkey's health deteriorates, while some of the chimps figure out how to make snowballs.
New windows in the orangutan nursery bring disaster, and a baby woolly monkey meets his family.
The chimps show off their football skills while the staff head to a neglected farm.
Alison and Jeremy arrive home with two new capuchin monkeys from Spain, but one of them makes a bid for freedom. Something is wrong with one of Britain's best known chimps, Trudy. Debbie's capuchin group takes on a snack that bites back.
Alison and Jeremy are tasked with rescuing feisty capuchin monkeys from Spain at the sanctuary, keeper Mike watches over a baby woolly monkey, the newest arrival at the park.
Disturbing footage convinces Alison to rescue an adult female chimpanzee working in the tourist industry in Mexico, who urgently needs the team's help. The nursery chimps have a play session.
Jonathan is over groomed and has gone bald, while Tom, one of the alpha male capuchins, has died. Elsewhere, the chimps are given walnuts and Jestah gets more than his fair share.
Alison Cronin travels to Monkey World's new endangered primate sanctuary in Vietnam, and meets the newest resident of the centre, Ellie the young golden-cheeked gibbon. Two rare monkeys are being kept in a theme park outside Ho Chi Minh City.