When an ancient threat, threatens to cast all of the Archipelago into enteral darkness, Sarah and her friends will have to band together with a new alicorn ally to save Archipelago and defeat the evil force.

After taking care of Shiny's WereDragon problem, the Skylanders do what they always do: protect the magical world of Skylands. After coming back from the Mesosoic Era in a different dimension, Eon gets a call for help from a Scottish-voiced viking by the name of Duggard the Decisive, chief of the island of Huttsgalor. Spike, Ember, and the rest of the Dragon members of the Extreme Squad, along with Spyro, Cynder, Sparx, and other Dragon Skylanders, are ready to help. And while they do that, Shiny gets acquainted with her new powers and the beast inside her, and Cynder continues to hide her fear of any of the Skylanders knowing of her dreaded past.

If you haven't watched this show, then I strongly suggest you do before reading this.

Sequel to Skylanders 2: The Mesozoic Era. With Shiny being infected by a contaminated gift of the Tribal Werewolf.