Colt fall into a coma, the doctors tried to bring him back but they couldn't so they decided to put him on a time capsule so that when he wakes up he doesn't look old at all.
But something went wrong, a war took its place and everypony in the building escaped. One hundred years later Colt finally wakes up and sees the new world.
Colt (C) ME.
Art by me.
Used pony creator.