In their home in the African Savannah, eland antelopes tend to have their calves during the warm dry season. However, Purple shows signs of having given birth just as the cold autumn Merseyside weather is starting to bite. The concern is that her new-born could be anywhere on the 30-acre Knowsley site. Vet Jen decides it's time for a full health check under a general anaesthetic for aged lion Ted, while Bactrian camels Marvin and Merlin cross the Pennines from Yorkshire looking for love.