It's a Hard Quiz lineup for the ages: Tom Gleeson grills experts in the kakapo (it's a flightless bird), Theseus (he's a mythical Greek), calculus (it's a field of mathematics), and Neighbours (it's Neighbours).

In one of the Hardest, Quizziest episodes yet, four experts head into battle wielding nothing but their brains, armed with their expert knowledge in Sylvester Stallone, Leeds United, labyrinths, and...rats. Let's play, HARD!