Twilight and the other elements are invited to a expedition in the Crystal Empire by Shining Armor to investigate ruins that were found beneath the ice. After meaning with Shining Armor at the outpost, gather the research team, they head down into the ruins and after being chased be creatures form the ruins they are about to leave when Rainbow Dash crashes through a wall reviling a chamber. In the center of the room there is a massive crystal, but inside the crystal is a young pegasus colt. How did the colt get trapped in the crystal, how long has he been in crystal and just who is he.