Rhod Gilbert puts Alex Horne's life in danger. Jessica Knappett's sunny view is tested.
Greg Davies gives the five comedians more difficult tasks. What gets Alex Horne's pulse racing?
James Acaster uses a ukulele to make Greg Davies' face.
Jessica Knappett wonders how much water weighs. Rhod Gilbert smears mustard in his eyes.
The tasks in this episode involve Christmas cakes and remarkable techniques.