A Half-Life 2 Adaption/Crossover.

When an evil from beyond the realm of nightmares descended upon the world they found themselves unprepared. Abandoned by their only hope of salvation and unable to repel the invaders they fell to the darkness and the world as they know it was destroyed. Years later, a power once thought lost to the fog of time and war returns, igniting the spark of revolution in the hearts of the downtrodden.

"Rise and shine, my friends. Rise and shine. Not that I wish to imply you have been sleeping on the job. No one is more deserving of a rest. And all the effort in the world would have gone to waste until... well, let's just say your hour has come again. The right mare in the wrong place can make all the difference in the world. So, wake up, little ponies. Wake up and smell the ashes"