The Father of Monsters sees that he must obtain a powerful trinket in order to defeat Twilight Sparkle and her friends. While his Legion were left to their own devices, Grogar sets out on a journey to find that artifact. However, he encounters unexpected hindrances that threaten to undermine his mission. He must figure out how to overcome them.

Note: This takes place during MLP: FIM season 9 episode 17 The Summer Sun Setback.