Chris Eubank, Len Goodman, Amber Gill, Anna Richardson and Nina Wadia each master a general knowledge topic, before being put on the spot in a rigorous quiz. Who can achieve total recall?

Boxing champion Chris Eubank is tasked with William Shakespeare in the form of Hamlet's 'To be, or not to be' soliloquy, ex-Strictly judge Len Goodman must memorise Churchill's 'We shall fight on the beaches' speech, Love Island winner Amber Gill is assigned the life and lyrics of Mick Jagger, Naked Attraction presenter Anna Richardson has Jane Austen, while actor Nina Wadia is assigned Martin Luther King. The first contestant is knocked out after a quick-fire observation round leads to a dramatic tie-break.

The four semi-finalists must all overcome their number phobia, as they are faced with memorising number-heavy sequential lists of US Presidents, 1960s Number Ones, the Modern Summer Olympics and The Academy Awards - plus hundreds of associated facts, dates and statistics. With fingers on buzzers, another competitor is knocked out after a taxing rapid-recall numbers round.

The remaining three celebrities face the extraordinary task of learning a foreign language in just one week. They must go from knowing nothing at all about their assigned language to carrying out a full conversational role play with host Sandi Toksvig under the quiz room spotlights. Then, the final two celebs face the ultimate memory shoot out - the tray test - when they have 60 seconds to memorise 25 objects, and just 60 seconds to recall them. The average person remembers just seven. How many must the winner recall in order for Sandi to crown them champion?