The Prime Minister says it's un-Australian for girls to wear trousers to school. But, Charlie's sisters think it's unfair. So, they want Charlie and his mates to wear dresses instead of their usual uniform, to make a point. And, they want the guys to play the footy grand final in skirts. Charlie's appalled. But, his mates want to impress the girls. Surely the blokes won't swap their trousers for dresses. Or, will they?