Marmoset James, who only arrived recently, ends up fighting for his life in the park's hospital, and a decision must be made when orang-utan Hsiao-Ning comes of age in the nursery.

Orang-utan Hsiao-Ning settles into her new home at Rostock Zoo, but she is a bit too feisty for her suitor Sabas. Plus, the boisterous Bachelor chimps have a playroom party.