Staff are at a loss to know what is wrong with Trudy the chimp, and one of two capuchin monkeys brought back from Spain by Alison and Jeremy makes a bid for freedom.

Disaster strikes at the orang-utan nursery when builders try to fit the new windows, baby woolly monkey Diego meets one of his family for the first time, and Samantha the squirrel monkey gets the all-clear from the park's vet.