拖错车

交通警狗熊与大咀为人神经质, 因经常撞板, 被下调拖车部. 二人在行动中发现可怜女孙面包, 决暂作收留, 并通知面包的姨 Mary 来港. 狗熊与面包渐成好友, 但大咀却对 Mary 自作多情, 弄至四人关系尴尬......Big Bear and Big Mouth were raised in the same orphanage. They worked in the traffic division of the police department for years. They were assigned to tow cars by their division commander; but on the first day of their assignment they mistakenly picked up a little girl named Bun. They were delighted to discover that Bun had an attractive aunt named Mary. In typical fashion, Big Mouth mistook Mary's show of affection as a show of love, and was devastated when she rejected him.