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

On his birthday, Sleet becomes a murder suspect when Nick Knowles' body is discovered in the detective's car. Rookie cop Vicky Pattison must break him out of prison and try and find the real culprit.

D.I. Sleet and Chris Kamara discover that D.I Sleet’s close friend, Successville’s most successful race horse, Alan Shearer has been murdered.

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

In this episode, DI Sleet is joined by Made in Chelsea's Jamie Laing who takes on the role of his sidekick. They learn that local restaurateur Bruno Tonioli has been shot in a brutal murder that has all the hallmarks of a gangland killing.

DI Sleet is joined by TV presenter Dermot O'Leary to help solve the kidnapping of Mayor Simon Cowell and the murder of his PA, Amanda Holden.

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

DI Sleet is joined by Pussycat Doll Kimberly Wyatt to help solve a murder down at Successville Hospital, where Dr Wayne Rooney has been bandaged to death.

This week D.I. Sleet is joined by Spice Girl Emma Bunton.

DI Sleet is joined by Dragons' Den star Deborah Meaden as they head up to Lady Gaga's mansion to deal with a minor complaint.

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

DI Sleet is joined by Radio One DJ Greg James. Our detectives learn that there has been a murder at the Successville Art Gallery - Reese Witherspoon (owner of Successville's chain of bars, the Witherspoons) has been killed.

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

DI Sleet is joined by Olympic gymnast Louis Smith to help solve the murder of pharmacist Lindsay Lohan who has been spray-tanned to death.

D.I. Sleet's sidekick this week is singer and jungle star George Shelley.

D.I. Sleet and Mark Wright are given the task of cleaning up the streets of Successville. Chief Ramsay wants them to eradicate a new lethal drug, nicknamed ‘Miranda’.

D.I. Sleet takes us through his colourful memoirs as he recovers in hospital

Sleet faces his toughest decision to date. He must turn his back on one of his personas forever, but will it be Sleet the cop or Sleet the superhero?