Two goons trouble Masao and snatch his video game. As Masao starts crying, Shin-chan, Kazama and all other friends fight together against the goons and get Masao's game back.
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Shin-chan and Misae go for a boat ride on the beach. They fall asleep in the boat and later realize that they are quite far away from the shore. After a long wait, the boat reaches the shore.
Gracias a Shin chan y compañía recuperan la consola de Masao. Los Nohara van a nadar a la playa, pero las olas se los llevan. Todos están a salvo pero Hiroshi ha perdido el bañador. Misae y Shin chan juegan con la colchoneta pero la corriente se los lleva.