While riding the Skyberry Trail, Wildstar gets spooked by grim magic, sending the group racing to a long-forgotten temple full of mysteries and danger.

Miss Primrose accelerates the students' training by sending them to an advanced obstacle course; however, competition may get in the way.

When grim magic contaminates the academy's water supply, the unicorns risk losing their power unless Sophia can save Starglow Lake with an unlikely ally.