1. The Brass Gnome

DI Sleet and sidekick Richard Osman wade into the art underworld to catch Bjork's killer.

2. A Murder in Ye Olde Successville

Guest rookie Martin Kemp is tasked with solving the murder of Rita Ora in Victorian Successville.

3. I Saw a Monster!

Reporter Harry Hill is found dead, covered with radiation burns and surrounded with weird footprints.

4. A Nest of Vipers

DI Sleet and his sidekick Reggie Yates try to solve the murder of undercover detective Noel Edmonds.

5. A Rat's Tale

Professor Green enters Successville amidst an epic rivalry between a supervillain and a masked vigilante superhero.