Leave Well Enough Alone

Kettu, a young arctic fox, is sent into the wild on his own for the first time. He is frightened but exhilarated. He knows he will be tested, but he feels he is up to the challenge. No longer a child, he is ready to learn more about the world around him.
His adventure takes a sudden turn, however. He finds an abandoned structure, and his curiosity leads him to explore it. His investigation ends up trapping him in an icy, underground world. And he soon discovers he's not alone.