Skyline, born under the legendary Blue Moon, is a bald eagle who cannot fly. Inspired by the greatest Storyteller among the eagles, Skyline develops a strong desire to travel to the Sea with his brother. In the course of their long, difficult journey, Skyline and his brother are captured by a bloodthirsty tribe of golden eagles. While searching for a means of escape, the brothers stumble upon a prophecy that foretells the rebuilding of the Kingdom of Eagles, which had been destroyed many lifetimes ago. Armed with the knowledge of a mysterious "Threesome" destined to rebuild the Kingdom, Skyline searches for the one thing that can save the eagles. But a more sinister force also hunts the Threesome, and before he knows what is happening, Skyline is thrown into a battle that will change the fate of all five animal Kingdoms forever. Before Skyline and the other eagles can claim victory, Skyline must overcome his disability and embrace his destiny.