The series stars Martin Shaw as the eponymous inspector and Lee Ingleby as Detective Sergeant John Bacchus, with Simon Hubbard and Lisa McGrillis in supporting roles as police constables in the fictitious North East Constabulary.
After an unidentified badly burnt body is found near an RAF base in 1964, Gently works alongside Special Branch officers who suspect the victim was involved with the IRA.
When the beaten body of wealthy German businessman Gunter Schmeikel is discovered in the harbour, Gently and Bacchus are forced to consider whether a barman's anti-German sentiments are a motive for murder.
The indefatigable Chief Inspector George Gently and his sidekick, John Bacchus experience the inflated authority of their "social betters" firsthand when a beautiful young girl called Ellen Mallam is found drowned in the passenger seat of an upturned car registered to local aristocrats, the Blackstones.
Company Pictures CEO Michele Buck commented: "We felt the character was coming to a natural end, and wanted to bring the audience an ambitious and exciting conclusion to such a well-loved show.
"[7] Episode Two was originally set to air on 28 May 2017, but was postponed due to its proximity to the general election in the UK, given that the storyline – not confirmed at the time – dealt with a controversial politician.