 Kim and Ron go to Go City to visit the newest and largest Bueno Nacho. While there, a mysterious villain - Aviarius - seemingly attacks Kim, but is really after the Bueno Nacho manager, who is secretly the super-strong hero Hego. Aviarius s weapon was stealing Hego s super-strength, but it bestowed them upon Kim. Getting home, Kim relishes her new powers until Hego finds her and tells her what happened. They return to his HQ - Go Tower - which only Kim can open with her powers. There they find out that Hego and his four siblings all received powers from a mysterious meteorite (forming the Go Team), and that his sister is Shego! Hego s brother Mego arrives, powerless, to report that their twin brothers are missing. Kim decides to enlist Shego in helping find her lost little brothers. When they storm Aviarius s lair, he gets the drop on them and steals all the Go Team powers. But in the ensuing fight, Shego gets his weapon and begins using all the powers at the same time to fight everyone. Dr. Drakken, worried about Shego, finds the lair and distracts Shego into losing the weapon and releasing the Go powers back to her brothers.