Winter's suddenly a lot cozier when you've got friends to help warm your heart.

Just like every year, Aldo returns to his den in late autumn to hibernate away the winter months. But this time, when first frost strikes, he has a nasty surprise: his den has been turned into a parking lot! Forced to face winter as never before, with no more than a coat and scarf, Aldo will have to confront many difficulties. Unhoused, often unwelcome, he will discover a harsh world... But solidarity, friendship, and the spirit of mutual aid spring up in the unlikeliest of places.