Leonardo (Leo) and his little sister Elsa have been orphaned by a tragic accident suffered by their parents. Now Elena, her aunt, a vehement and extraordinary veterinarian who lives hundreds of miles away, is her only family. She welcomes her almost unknown nephews, giving them a new life in a lost town; So lost as to be suspicious of preserving their fantastic and silenced secrets. Until one day Leo, trapped by the magnetism of a strange forest, enters the heart of his own mystery, where he stumbles upon a singular young wolf. Together they embark on the search for a dark being for countless corners of that magical land.