While Mother is out running errands, Pingu and Pinga create a makeshift tent indoors by placing a large sheet over some chairs and propping it up with a broom. Pingu fetches the toys and some cushions, but there is not enough room to move around in and their tent soon collapses. The two penguins argue about who is to blame for this catastrophe. Pinga angrily throws a cushion at Pingu's head; Pingu chases after her and throws it back at her, but it hits a blue vase on the sideboard, causing it to fall over and smash to pieces.
Pingu and Pinga are horrified at what they have done and once again argue over who's fault it was. Then they realise that Father will be home soon and quickly clean the mess up. Pingu hides the remants of the broken vase in the cupboard and makes Pinga promise not to tell anyone.
Then Father comes home with a bouquet of flowers. He goes to put them in the vase, but notices that it is missing. He asks Pingu and Pinga if they know what happened, but they deny any knowledge to the vase's whereabouts. Father searches everywhere and eventually finds a small fragment of the vase lying on the floor. Pinga realises that there is no way out now; she tells Father the truth and shows him where the vase is hidden. Father looks sternly over at Pingu, who begins to weep. When Father sees how sorry Pingu is, he has an idea. He eats the last gherkin in the pickle jar and uses the jar as an alternative for the vase, which cheers everyone up.
When Mother arrives home, Pingu tries to make sure that Pinga does not break her promise not to tell anyone, but Pinga tells Mother about the broken vase anyway. Pingu is most annoyed, but luckily for him his parents are able to see the funny side.