Kuro's grandfather was called "Black Lightning" by his friends because, long ago, he beat a dragon in a race. One of those friends, an old dog called Grampy, predicts that the dragon will soon return. Hearing this, Kuro decides to take up the challenge!

Takeshi's backpack is filled with snacks. Tama, accompanied by Tora and Pochi, goes chasing after him and his classmates on their class outing. They cross railroad tracks and rivers, facing many dangers... Will Tama and the others ever find the snacks they seek?
Pochi, you drank so much river 
water, your stomach is full!
!بوتشي، شربت الكثير من ماء النهر حتى امتلأ بطنك
Du hast so viel Flusswasser getrunken,
dein Magen ist doch voll.
Bebiste demasiada agua
y tienes el estómago lleno.
Pochi, hai bevuto così tanta acqua di fiume
che hai lo stomaco pieno!
Pochi, você bebeu tanta água do
rio que está com a barriga redonda!
Поти, ты столько речной воды выпил, 
живот забит!