The Adventures of Pepper (1961)

The forest is a home to many animals, and they each have their own worries. Thus, a bear has to look after an apiary to collect honey, a bunny likes to dance, frogs and fish swim in the pond. Suddenly the idyll gets broken because of the poisoned water, which can cause death to the river inhabitants. One of the fishes calls the editorial office with the hope that she would not get a refusal to help...