A massive dog named Boulder lives on the edge of a small pack of stray dogs who only barely tolerate him, keeping their distance because his size and strength make them uneasy. Although he believes he’s just like them, Boulder constantly struggles to fit in, trying to make himself smaller and less noticeable. When the pack faces danger from other dogs, Boulder instinctively steps in and drives the threat away, revealing the power he never understood he had. Even after proving himself, the pack’