Controversy abounds over a clue which sees Kerre McIvor and Hilary Barry lodge a protest with Paula; Lily McManus takes a tumble; and the Topp Twins get everyone involved in a singalong.

Jason Gunn dusts off his tap shoes; Toni Street, Stacey Morrison and Bernice Mene help Hilary to decrypt a tricky clue in the showoff round; and a mental block from Tom brings his cleanliness into question.