When Sunburst discovers the lost journal of Starswirl the Bearded, Twilight becomes obsessed with saving her magical idol from a thousand-year-old prison.

With Starswirl and the other Pillars of Old Equestria back from limbo (where they’ve been trapped for a thousand years), Twilight and her friends must work together to defeat the Pony of Shadows.

Twilight and Shining Armor pit their wits against each other to settle a long-standing sibling rivalry, but they soon discover they are not the only competitors.