Bulletproof is a British police procedural series, created by and starring Noel Clarke and Ashley Walters, that first broadcast on Sky One on 15 May 2018. Produced by Vertigo Films and Company Pictures, the series follows NCA detectives, and best friends, Aaron Bishop (Clarke) and Ronnie Pike Jr. (Walters), who investigate some of the country's most dangerous criminals, including traffickers, drug dealers and armed robbers, whilst being overseen by their boss Sarah Tanner (Lindsey Coulson).The series was co-created and principally written by scriptwriter and director Nick Love, who was approached by Sky to work on the series following his work on the 2012 remake of The Sweeney. Walters and Clarke commented to Deadline Hollywood that the series was inspired by films such as Lethal Weapon and Bad Boys, quoting that "the humour and funny moments come from the relationships between the characters." The series' opening theme, "All Goes Wrong", was also personally chosen by Clarke and Walters. The complete series was released on DVD on 23 July 2018. Worldwide distribution is handled by Sky Vision.On 19 June 2018, the day of the series one finale, a second series consisting of seven episodes was confirmed. Sky TV announced in December 2019 that the second series would air on 20 March 2020. Further, in August 2019 it was announced that a new three-part special would be broadcast in autumn 2020. The special began airing on 20 January 2021, with all episodes released for on-demand viewing. It sees Bishop and Pike journeying to South Africa to investigate the country's criminal underworld.On 15 January 2021, five days before the third series premiered, Bulletproof was renewed for a fourth series. The series was set to consist of eight episodes; filming had been scheduled to begin later in the year. However, following allegations against Clarke in late April 2021 of sexual misconduct and bullying, filming was suspended, and makers Vertigo said they would investigate whether any of the allegations related to their productions. In May 2021, the series was officially cancelled by Sky One.