The team must make an important decision concerning the safety of a chimp group when alpha male Hananya continues to exhibit violent behaviour. Elsewhere, chimps Simon and Eveline compete in a swing-off, dental surgery is carried out and the park's staff prepare for the next woolly monkey birth.

The park hosts a morning sing-off, and golden-cheeked gibbon Zoey introduces a new member of the family. Over in Hananya's group, hot potatoes are on the menu, and a fight among the female capuchins leaves Phoebe with a bite wound that requires surgery.