Donal sets out on the trail of the new dance drug some fear is more damaging than heroin and more dangerous than crack. His quest takes him to British holiday destinations where it has taken a grip and earned the nickname "crazy medicine".
Donal exposes the slave trade operating at the heart of Britain's sex industry. He and his team infiltrate the world of Albanian pimps based in the UK who offer women for sale, and he also hears from women forced into prostitution.