Has Xena the one-year-old cheetah cub got what it takes to be reunited with her mum? Abandoned at birth, the odds are stacked against this beautiful big cat. She’s been hand reared and her legs are deformed. Kate Humble and Ben Fogle discover how devoted keeper Matt is doing special exercises with her to strengthen her legs, and osteopath Tony Nevin uses cutting-edge laser treatment to do what he can to help. But how will Xena cope when she comes face to face not just with mum Wilma but the three other cubs she’s since given birth to? Will it be happy families or a brutal falling out? For Kate, it’s nostalgic trip to Nico’s Island as she visits for the very first time since the park’s famous gorilla died last year. But she’s here to celebrate new life and new beginnings as she gets up close to seven colobus monkeys who have taken up residence. But will these fellas, renowned for their leaping abilities, end up in Half Mile Lake? There’s tragedy in the Tiger House with the sudden death of 13-year-old Shouri, and Jean Johansson gets up close to some creepy-crawlies famed for being indestructible and finds out why you really wouldn’t want to kiss a cane toad.