999: What Happened Next has finally returned to Channel 4 with new chilling investigations
A brand new season of Channel 4’s “unflinching” true crime documentary has today returned to television screens with yet another chilling case.
Titled 999: What Happened Next, the documentary series goes beyond an initial 999 call as viewers hear from police officers who open up about the difficult policing work they do to bring those guilty to justice. Focusing on crimes across the UK, the series explores everything from fatal confrontations to random acts of street violence.
Now, brand new episodes have finally arrived on Channel 4, with the first instalment airing tonight at 9pm on Channel 4 (September 7). Subsequent episodes will air every Monday at 9pm, with four expected so far.
It comes after the series made its premier earlier this year, with viewers branding it the perfect watch for fans of landmark series 24 Hours in Police Custody.
An official synopsis reads: “The Channel 4 true-crime documentary series is back this September and follows frontline detectives as they investigate some of the most shocking and complex crimes across the UK. From fatal confrontations on quiet driveways to random acts of street violence, from stalking campaigns driven by obsession to devastating cases of impaired driving, each episode presents two gripping investigations where the truth is buried beneath fear, lies, and chaos.”
With CCTV footage and forensic breakthroughs, the logline adds: “Unflinching, emotionally charged and grounded in real lives forever changed, this series is a compelling exploration of modern policing and the human cost of violent crime.”
Tonight’s episode plunged viewers into a “deeply disturbing case” when one train passenger was forced to contact the British Transport Police after seeing what was on another traveller’s phone.
What happened to David Johnson?
Johnson was arrested after watching indecent videos of children on his mobile phone when the act was caught by another train passenger – who contacted the British Transport Police text messaging service.
He was apprehended at London Euston station with detectives uncovering a dark reality in their investigation. He was later charged for multiple offences and was subsequently jailed in April of this year.
In the episode, it confirmed: “David Johnson was charged with: Arranging a child sex offence, 6 counts relating to indecent images of children in categories A, B and C, 2 counts of attempting to engage a child in sexual communication.”
It then added: “David Johnson pleads guilty to all the charges against him. He is sentenced to two years and three months in prison. He will be on the sex offenders register for 10 years.”
Earlier this year, the Home Office took to social media to share a clip of David’s arrest as they wrote on Facebook: “This predator was spotted on a train viewing indecent images of children.
“David Johnson has been jailed after a member of the public reported him to @britishtransportpolice. Officers immediately rushed to meet the train at London Euston to make the arrest.
“His phone was found to contain nearly 200 indecent images of children. That swift action by both the public and BTP officers put a dangerous predator behind bars. If you witness something concerning on the railway, text 61016.”
The episode also hears from the witness who reported David Johnson to the BTP who said: “I’m definitely glad I decided to take action, definitely, 100%.”
999: What Happened Next airs Mondays at 9pm on Channel 4

