In an event known as the storm, Equestia gets bombarded by mysterious creatures from outher space. Now roaming around freely these behemoth sized aliens cause mayhem all over the continent, changing everyone‘s lives forever.
As the princesses and their armies struggle to hold off the invaders, Apple Bloom accidentally consumes a strange fluid, allowing her to be the only pony capable of communicating with a mysterious robot.
Teaming up with old and new friends, Apple Bloom takes control of the giant machine in the hopes of repelling the monsters back to space.
This is easier said then done, especially with the public seeing them as just another monster, and the machine having somewhat of a mind of its own…
Minor inspiration from Mech-X4