A malfunctioning AI robot takes over a facility and threatens the ponies. Rainbow Dash and Hooves must stop it by reactivating old AI systems.

Celestia tasks Twilight Sparkle with finding the Elements of Harmony to stop Discord and provides her with a personality core to assist her mission.

Twilight undergoes different tests and meets up with new and old friends.

Twilight Sparkle and her friends encounter Trixie, who is angry at Twilight for ruining her reputation.

Twilight Sparkle drinks a potion to learn of her forgotten past and catch up with the present. It has been ten years or more since a terrible event in Equestrian history known as the Fall of Canterlot.

Dr. Whooves talks about the impact of events in Canterlot on the ponies in their current location.

Trixie navigates a high-tech facility, feeling frustrated with Twilight's naive behavior. She believes the Celestia AI holds the answers to what happened in the deserted facility.

The Fall of Canterlot sees the victory of the changelings. Having defeated their enemy, the hive looks inward, bringing torment down on Chrystalia, the traitor who fought for what she felt was right.

Due to a facility becoming insecure, an evacuation to the Luna Laboratories facility is initiated. However, there isn't enough room on the ship for everyone

Twilight, accompanied by the Cores of Harmony, draws closer to her intended goal. Trixie, on the other hoof, descends further into the facility to find the scientists and answers. They will both face the past that lingers from behind them.