Bradley, Tina and Jo learn that the other members' clones are unaware of being clones themselves, and are surprised when these clones shed their ritualistic routine and enjoy simple pleasures of life for the first time, such as boomerang games, real food, drinks and sightseeing. Determined to find out who created the clones, Jo researches the internet and discovers that Gaghan, a former genetics professor who was fired for illegal cloning experiments, recently purchased S Club memorabilia online, including their underwear. When their friends fail to show up as planned after being captured by Gaghan's goons, Bradley, Tina and Jo realise that something is wrong and reveal to the other members' clones that they are copies, and urge them to overcome their programmed memories to figure out Gaghan's location. The clones make a breakthrough and remember their birthplace and Gaghan's location: Eagle Peak. Formulating a plan to enact revenge on Gaghan for the cloning, Bradley, Tina and Jo arrive at Eagle Peak with their friends' clones and run into the real Hannah, Rachel and Jon, only to be caught by Alistair while trying to escape. While the Hannah, Rachel and Jon clones run into their bandmates outside and tell them the truth of their origins, Gaghan tells the originals that he is going to take over the world through music because celebrities attract more attention than politicians, before leaving Alistair to kill the band. The clones save the band by revealing that Alistair is a clone due to his own lack of belly button and rebelling against him. In the dining area, S Club are alarmed at the clones Gaghan has created including clones of AC/DC's Angus Young, King of Rock & Roll Elvis Presley, Will Smith as Men In Black's Agent J, Victoria Beckham (as Posh Spice), Robbie Williams, Eminem, King of Pop Michael Jackson, Elton John, Madonna, George Michael, Pop Idol star Gareth Gates, and Groucho Marx (of the Marx Brothers), and encourage them to rebel against Gaghan for their own free will. Enraged at this, Gaghan initiates a self-destruct sequence of Eagle Peak, which threatens to kill S Club and the clones. Both S Clubs band together to save the clones and sing "Who Do You Think You Are?" whilst the Jackson clone stops Gaghan and Sealove from escaping in their helicopter, and the original group is able to stop the place from self-destructing as the clones