It's Grade PR's biggest fashion event to date, but new interns Rachel and Sam discover that the firm has been blacklisted by every modelling agency in the country. Fortunately, Colby has drafted in some beautiful girls to fit the bill. During the catwalk build-up, Sam assists Shussi and the police in an undercover operation, while Rachel plays matchmaker to Susan and a graphic designer. Celebrity guests Gemma Cairney and Calum Best arrive for the show, but with Sinitta's attempt to gatecrash the party and the undercover police waiting to swoop, can the interns hold it together?