Ulsa is different from all other ponies in her community, even her mother. For some strange reason she was born with a great long horn in the middle of her forehead. Not knowing about unicorns, everyone assumes Ulsa is simply and oddball pony, including her. No one play with her. One day the community is threatened by Terry the Terrible, a troll took up residence at the edge of the ponies' precious land. They have until sunrise to be gone or Terry the Terrible will use his magic and turn them all into miniature ponies and make them his slaves. Ulsa is the only brave one to stand up to Terry the Terrible. It is then that she first learns she is a unicorn, and the other ponies learn an important lesson about treating others with respect!