Based on a popular children's book series from Finland, the film tells the story of Ella and her classmates, who spend their summer at a nature camp in a beautiful Finnish forest. One day, Ella receives a mission from Mother Nature herself – save the forest from the evil timber industry, which wants to cut down the surrounding woods and destroy the home of all the animals, including a cute Otter family who lives in the forest lake. Ella must now use all her wisdom and knowledge of tricks and traps to fight the villains and, together with her friends, stand up for what truly matters!