The five young people of books one and two are forced to face new threats to their freedom and lives in this, the final book of the Flip! trilogy. They have to apply all they have discovered about themselves, their friendship, and their knowledge of the enemy in a battle of wits, bravery and sheer good fortune - or maybe not - as Donald Padget and his coterie mount a concerted effort to crack the solution to their ability to flip into the fifth dimension. The Daisychain is bent on using that knowledge for evil and the teenagers realise that it is now not just about saving their own skins but the future of the world - at least, one version of it that is...