On their way home, the duo, with Shapoklyak's help, stops hikers from poaching and a factory from polluting a river.
Though the city Cheburashka and Gena live in is unnamed, it is implied to be Moscow.
This film contains a famous Russian song called "Blue Train Car [ru]" (Голубой вагон) by the composer Vladimir Shainsky on Eduard Uspensky's verses.
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