Deep in the Northern Wilderness, a boy named Otto is forced to leave his home after a gang of brutal hunters have razed his village to the ground in search of a mythical creature to live in the forest. Now on the run and afraid for his life, Otto accidentally bumps into the elusive creature hunted by the hunters and makes friends with it. Thus begins the dangerous adventure of Troll and Otto, two outcasts fighting for their survival.
Together, Otto and the Toll embark on a journey through treacherous territories haunted by hostile adversaries. As locals of the forest, the two unequal friends must use their natural abilities to find their way home through sneaking, strategy and battle. The forest is teeming with unknowns, so teamwork is vital to survival.