The team is forced to step in when Ben is injured by the alpha male during the chimp introduction. Orang-utan Hsiao-Quai struggles with her ever-growing son Kai, and staff at Monkey World prepare to welcome a new arrival.

Resident capuchin TJ causes mischief when he joins the new Chilean arrivals, and alpha male Paddy has to step in. Orang-utan Amy is pregnant but the keepers worry she will not be able to care for a baby, and chimps from Hananya's group get their teeth cleaned.