After a civil war over reproductive rights, the Bill of Life is signed that states that the parents of an unruly foal between the ages of 13 and 18 can be "unwound"; a process in which the subject's body parts are removed and saved for future use. Three teenage ponies, each from a different part of Equestria find themselves in Fillydelphia together. Can they live to 18? Based on the book "Unwind" written by Neal Shusterman.
—NOTE—
The character's ages are directly proportional to human ages at a 1:1 ratio.