After seeing it on TV, the Kamohara family goes to a safari park. However, Dad says, "A safari park is not a zoo! It`s a savanna where survival of the fittest reigns!"; Having arrived at the safari park, the Kamohara family boards the animal bus to take them around the park. Seeing the guide, Okita, has fully captured the children`s hearts, a sense of rivalry burns within Dad; Bunji and Fumi head to the petting area alone. Like an older brother, Bunji tries to look after his little sister, but a little misunderstanding blows up and things get unpleasant; On the way home, Mom gets irritated after they get caught up in a large traffic jam. She notices that Bunji, Fumi, and even Dad need to go to the bathroom. They manage to make it to a service area at the last minute but...