Episodes
1. Episode 1
7 Sept 2026 · 47 min
A passenger on a London-bound train notices something deeply disturbing on another traveller’s phone. And across the Fens, officers investigate a series of high-value vehicle thefts.
2. Episode 2
14 Sept 2026 · 47 min
A missing person investigation goes from a kidnapping to something more sinister. In Hertfordshire, officers pursue a predator who's targeting elderly victims at cash points.
3. Episode 3
21 Sept 2026 · 47 min
A woman preparing for a Christmas night out is brutally stabbed in her own home. And detectives pursue an international burglary gang who are raiding affluent Surrey homes.
4. Episode 4
28 Sept 2026 · 47 min
A dead body is found in a North Wales nature reserve, revealing a deeply disturbing and sinister murder in the family. And a high-end crime gang is running loose in West Mercia.
999: What Happened Next Series 2: quick answers
How many episodes are in 999: What Happened Next Series 2?
Series 2 of 999: What Happened Next has 4 episodes, about 3 hours in total.
When did 999: What Happened Next Series 2 come out?
Series 2 premiered on 7 Sept 2026.