It's Derby Day at Popetown, the day when all the major religions come together for a day at the horse races, with $100 million at stake for the winners.

Naturally the Cardinals want all of that prize for themselves, and they've arranged for a genetically modified and drugged up horse to win for them.

And as always, keeping everything running to plan has fallen to Father Nicholas, but unknown to everyone else, a traumatic experience at age 3 has left him deathly afraid of horses, and without his control, the day risks being a shambles.

• Kevin Eldon
• Morwenna Banks
• Mackenzie Crook