The two monkey families, Weismüller and Attila fear each other. That they actually are out of the same family does no one know, because their separation is caused by a terrible war, which only the oldest are able to remember. It was the secret weapon, which caused the accident – a weapon, which destryos everything and which therefore has to be hidden away … but by whom? No one knows. A Romeo & Juliet-story develops when two young monkeys meet. They fall in love, but they are not allowed to, because they each belong to their own family.