The series follows Girls Aloud in the buildup to their 2006 Chemistry arena tour, from appearing on TV shows to filming the "Whole Lotta History" video in Paris, promoting in Australia and New Zealand, doing promotional appearances in Ibiza and Greece, and going on an ambassadorial trip to China. The series also follows a selection of Girls Aloud's fans, including two Australian fans who spent all their money on tickets to Girls Aloud's Wembley show. The girls' personal lives were featured too.