The Boob Kingdom and The Butt Kingdom have been feuding for a long time. One day, the two kingdoms get into turf chase in the transdimensional street void and cause a ruckus, attracting a monster to the area. The two groups run for their lives. Booby Jill, the leader of the Boobs, gets chewed out by The Booby King for luring the monster in, when a letter delivery interrupts them. The Butt Kingdom extends an invitation to The Boob Kingdom and the two kingdoms decide to have a duel via Sports Day to know once and for all who is better in order to protect their land from the monster. The two kingdoms meet in neutral ground in the Transdimensional Sports Centre and begin a set of challenges “to the death” (sports day activity montage: rock, paper, scissors, tug-a-war, dodgeball, and potato sack race for instance). Before long, another fight ensues and the ground starts to shake. They all come to a halt and they find themselves faced with the monster; the giant Uterus.