Bert and Joséphine live in the middle of the forest, in a prune tree. They take care of the forest together, and make sure all the animals and creatures are feeling well. Every night, Bert lights up the forest thanks to mushrooms. Jospéhine, on the other hand, take care of a group of very special shrooms. All is well in the woods, until the day the mushrooms start to disappear one by one. Weird! This story about nature is above all things a story about harmony and balance, despite superficial differences. The directors chose the traditional stop-motion technique with dolls: a magical choice.