From the preview, "Skylanders Swap Force is set in the Cloudbreak Islands. Every 100 years, a magic volcano there erupts. Naturally, it erupts magic, whihch is then used to supply magic to everyone and everything in the Skylands. It’s just getting ready to erupt again, and Kaos wants to take advantage of that. He wants to evilize the magic volcano so it will spew evil over the land, transforming every creature and area. Fortunately, the Skylanders are here to save the day, and are joined by new Swap Force characters."