New series. In the first episode of a new series, orangutan sisters Emma and Subis are due to give birth at the same time, but after being in labour for over 24 hours with no progress, Subis is rushed to the vet for a possible caesarean section. Meanwhile, meerkats Beagle and Huskie have moved to the zoo as the new breeding pair, but their new housemates, the aardvarks, are making them anxious. In an effort to make them more comfortable in their new home, the team decide to redesign the paddock to give the meerkats their own space.