After her grandfather's death, 20-year-old Alma decides to go back to her childhood home -- a little island in the heart of a majestic forest. While there, she rescues two helpless cubs: a wolf and a lion. They forge an inseparable bond, but their world soon collapses when a forest ranger discovers the animals and takes them away. The two cubs must now embark on a treacherous journey across the wilderness to reunite with each other and Alma.