Ruby the parks newest and largest marmoset gets introduced to males Jock and Colin, but it doesn’t go to plan. The primate care team have noticed that Lola a chimpanzee in Paddy’s group is having problems with her sight and start training her to allow a close up examination. She is diagnosed as having cataracts and the team need to decide if she should have an operation. At orangutan Tuan’s enclosure they get a special breakfast of fruit and jelly and RoRo’s left with the washing up.