New Tricks: Series 8

Season overview

Role: Meticulous television and film archivist.
Task: Create a JSON object for "New Tricks" Season 8.
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Constraints: Use ONLY provided synopsis and sources. No invented facts. No markdown. No asterisks. No headings. No bullet points in the overview. Output valid JSON only.
Source Material:
Synopsis: Brian Lane, Jack Halford, and Gerry Standing are eccentric, ignore procedure, bend rules, take risks, but get results. Season 8 cases: death of a senior palaeontologist at the Natural History Museum, hit and run of a cycle courier, murder of a vagrant on a tube train, missing scientist on the London to Paris Eurostar, murder of a leader of a criminal biker gang. Guest stars: Sheila Hancock, Keith Allen, Peter Davison, Tim McInnerny, Rebecca Front, Sally Phillips, Paul McGann, Shaun Williamson, Emily Glenister. Personal dilemmas: Brian suspects wife Esther of having an affair, Sandra questions her role at UCOS, Jack struggles with emotions during the hit and run case, Gerry is back on the dating scene.
Source [1]: New Tricks is a British comedy-drama following the work of the fictional Unsolved Crime and Open Case Squad (UCOS) of the Metropolitan Police.
Source [2]: Wikidata link (no content provided).
Overview:
Season 8 of the British comedy-drama New Tricks follows the Unsolved Crime and Open Case Squad of the Metropolitan Police, known as UCOS. The team consists of Brian Lane, Jack Halford, and Gerry Standing, who are characterized as eccentric individuals who ignore procedure, bend the rules, and take risks to achieve results. During this season, the squad investigates several diverse cases, including the death of a senior palaeontologist at the Natural History Museum and the hit and run of a cycle courier. Other investigations involve the murder of a vagrant on a tube train, a scientist who went missing on the London to Paris Eurostar, and the murder of a leader of a notorious criminal biker gang. Alongside these investigations, the team members navigate personal challenges. Brian Lane deals with suspicions that his wife, Esther, is having an affair, while Sandra questions her role at UCOS. Jack Halford struggles with his emotions during the hit and run case, and Gerry Standing returns to the dating scene. The series features guest appearances from actors such as Sheila Hancock, Keith Allen, Peter Davison, Tim McInnerny, Rebecca Front, Sally Phillips, Paul McGann, Shaun Williamson, and Emily Glenister.
Word Count Check (Overview):
"Season 8 of the British