During a wild and indulgent holiday in Brazil, sensuous young travellers, Gwen and Fiona, fall into the hands of the Legion of the Pink - an international S&M cult based at the remote ranch of Dom Alves. Here, each girl discovers her repressed fetish for previously forbidden roles - Gwen craves submission, and Fiona becomes an expert dominatrix. Together, they become missionaries for Dom Alves, serving as slaves or dominas for the rich and perverse, before returning to Europe to recruit more girls for the Legion.