On her way to the park, Momo drops the precious bell her mother gave her. Meanwhile, Tama is bothered by the fact that Momo hasn't arrived yet, so he goes looking for her and hears the sound of Momo's bell coming from the drains...

Tama looks up at a sky where fluffy clouds float by as they always do. Where do clouds come from? Tora leads Tama and the others to the place clouds come from, and that place is...
It's water! Water is flowing this way!
!إنّه ماء! يتدفّق الماء إلى هنا
Das ist Wasser! Es fließt auf uns zu!
¡Es agua! Se oye el agua.
¡Es agua! Se oye el agua.
C’est le bruit de l’eau !
Elle arrive sur nous !
È acqua! L'acqua arriva verso di noi!
É água! Tem água correndo para cá!
Вода! Сюда сейчас хлынет вода!