Overview: Elderly gibbon Ella is on the operating table; eye surgeon Mr Bray and his team are going to try and give her back her sight and quality of life. It’s a very difficult procedure on such a small patient, and there are some nervous onlookers in the room. Over at the orangutan nursery it’s pomegranates and marmite for Hsiao-Quai, Jin and Awan and Jin has got this licked. While indoors big brother Kai is being trained to walk into a traveling crate for his impending move. And the squirrel monkey and saki enclosure gets a makeover.