The family may be saved when a pharmaceutical company looks to fund an environmental project.
Danny and Evan find a sick hippo and try to save it; Rosie meets the new owner of Mara.
Elephant numbers are outgrowing Leopard's Den but the new owner of Mara encourages Danny to think big. He wants the two parks to merge. Du Plessis discovers that his family is growing but spreading wings.
A successful giraffe capture means everyone is in high spirits, until the arrival of Evan and Olivia's real father, Simon, throws the family into turmoil. He is determined to take his kids back with him to England.
