The adventures of Pingu, a clever but clumsy young penguin. Companions include his baby sister Pinga, his best friend Robby the Seal, his caring mother and his father who is the local postman. Pingi is playing happily with Pingo when Pingu joins them. But somehow he is always left out of their game, and Pingi seems to prefer playing with Pingo. The two boys get into a showing-off contest that spirals out of control!