Tindale is the youngest of a litter of seven mice. He is new to his home, which is nicknamed the Warren, but is in reality, a massive underground bunker complex. It has been six years since Princess Twilight became an Alicorn, and Equestria has spiraled down through the hurdles of economic depression, societal collapse, and the ensuing anarchy. In this harsh new world, Tindale must fight the enemies of his country, the Federation of Species, which includes rabbits, hares, mice, moles, squirrels and otters. However, together they must fight new enemies, and make new friends in order to save their dying world from the brink of destruction.