The series continues with another four contenders taking to the black chair, answering questions on their chosen specialist subjects to earn a place in the semi-finals. Clive Myrie hosts, and the specialist subjects are Sir Isaac Newton, Red Dwarf, Mary Queen of Scots and Billy Bragg.

The hunt for the nation's Mastermind continues as Clive Myrie tests four more contenders on their specialist subjects and general knowledge. The specialist subjects this time are the films of Martin McDonagh, Dorothy Parker, US presidential elections from 1948 to 2000, and the music of Tom Waits.