Spike had been captured by a alien group called the Kraang for some time now, he was taken away after he just wanted to have some time to reflect. He was taken away from Equestria and brought to another dimension, he was in captivity for some time, but he then meets two strange creatures called" Human's" and are thrown into his cell, he meets a girl called April who has caught they're interest as well.
After some time waiting they are rescued by a group of 4 mutant turtles, after they fail to rescue April's father, Spike is now freed but without anywhere to go, so the turtles take Spike in and is trained by Master Splinter to stop the Kraang and return home.
New Cover art is thanks to Dragonknife 5, he helped make this and all credit goes to him.