During the eruption ceremony something tragic happened. Kaos' mother aimed to destroy the volcano, but a team of Skylanders defended it. After that, the volcano erupted, sending these Skylanders to Earth. The volcano's eruption gave these Skylanders the ability to swap their tops and bottoms, transforming them into the Swap Force
100 years ago a devision of Skylanders (guarding the magic volcano Mount Cloudbreak) ran into some trouble when, during the eruption ceremony, Kaos' mom attacks. The Skylanders won the battle but ended up being caught in the magic eruption of Mount Cloudbreak. These Skylanders were hurled to Earth but the magic from the volcano also gave them the power to swap top and bottom halves. They now go by the Swap Force. But Kaos and his mom now (100 years later) threaten Mount Cloudbreak and it is up to the Swap Force to stop them.