Hiroshi and Shin-chan go to a petrol pump to fill fuel. Shin-chan troubles the attendant and gets her sacked out from her job. While Shin-chan's grandfather sends watermelons for Shin-chan, Misae and Hiroshi also bring watermelons home. They all have watermelon for dinner. The family plays 'break the watermelon game'. Shin-chan succeeds in breaking the watermelon and wins the game. (thetvdb.com)