The park welcomes a pair of endangered Amur tigers who are part of a vital global breeding programme, so it is essential they produce cubs to help ensure the survival of their species. But this hopeful love match have never met, so the big question is whether it will be love or war. It's a world first for an osteopath who treats Alfie the gorilla for an injury endured play fighting with his silverback brother, but what is the best way to get healing hands on a 150kg gorilla thought to have 10 times a person's strength? It's all hands on deck as Jean Johannsson helps move a whole host of sun-worshipping reptiles outside to catch some rays before finding out how far a binturong will climb for a frozen banana. Meanwhile, the Jungle Kingdom keepers step in to save a viciously bullied meerkat, but will their rescue attempt work?

A new era begins for Mark Tye and his team they welcome two youngsters to their existing gorilla colony. But how will these adolescent boys fair leaving their family groups for the very first time, and will they be accepted by the ruling silverback Kesho and his two brothers? Navigating the introduction of these complex individuals is the greatest challenge yet for the gorilla team. Another new arrival is ruffling feathers in the east African reserve as Haggis the ostrich gives the patrol team the run-around. But could her naughty behaviour be down to a need to breed? Meanwhile, Jean Johansson helps to feed one of the most deadly animals in the park an egg and finds out just how high a tiger will jump for its dinner. Ben catches up with Viscountess Weymouth to find out how Newt the abandoned wallaby joey and his surrogate mum, Gemma, are doing.