After the mane six visited the Great Valley now it's the gang of sevens turn to go to Equestria,but not alone.As the eight young dinosaurs explore Canterlot and Ponyville and learn about the lives of their pony friends under the shadows of the Everfree Forest their most deadly enemy also arrives to the land of ponies.Now the two gangs must once again join forces and struggle to defeat this deadly foe while also trying to survive the greatest war Equestria ever bared.