Fed up of Jerry's butting in to their personal lives and treating them like children, the girls are happy to see the young Mac Smit takes over as the head of W. When they end up in the middle of another kidnapping, they follow the criminal through a strange portal – transporting them back to the year 1136.The knight reveals to be a Malibu teen who wants to become the leader of the world by using his modern technology to overthrow the benevolent king of the period, and takes Clover as his queen.The kidnapper, a concerned parent and ambassador, has stolen the prize winners' intelligence and transmitted it into his son to make him the smartest child in the world.
The series comprises six seasons divided into 156 episodes. Undercover, the three girls share a villa, and at the end of that season, they are promoted to super spies in the organization and are referred to as such for season 4. It later premiered in Europe on channels such as Germany's Pro Sieben, France's TF1 and the United Kingdom's Channel 4 during the spring of 2002. The show has been broadcast worldwide on various networks, including TF1 in France, Teletoon in Canada, Cartoon Network in the USA and Latin America, Rede Globo in Brazil, Disney Channel and Nickelodeon in Asia, Africa, and Europe (formerly Fox Kids and Jetix).
Season 5 follows the girls' adventures as they continue onto university. The head writers for the show were Robert and Michelle Lamoreaux who were based in Los Angeles, and who had worked on Nickelodeon shows.
The girls go undercover on a popular game show FIGHT (Fear Intimidation Gladiator Habitat) to discover why the famous Olympic decathlete Reggie Willis and several other competitors have gone missing after losing on the show. D instead harmed Adam's old enemies and now plans to fire nuclear missiles at all of Adam's old schools. Clover goes undercover as the queen at a party, but is kidnapped in her place.
It turns out that the host Vince King has been enslaving the contestants using mind-controlling electronic collars to make them into new gladiators, ensuring that no one will ever win. Sam, Alex and Tassara follow her trail, discovering that the person behind the plot is actually the queen's younger sister Makeda, who plans to escalate the war so that she can be queen of both countries.
During their time as contestants, the girls became crowd favorites, but Vince turns Sam into a gladiator, pitting her against Clover, Alex and a freed Reggie Willis rally together and attempt to pull the plug and end the show once and for all. In the subplot, Clover and Mandy campaign to be homecoming queen, but due to the mission, Clover enlists of the help of nerd Arnold Jackson, who agrees on the condition that she be his girlfriend for 24 hours if she wins.