Professor T returns for an explosive 4th season with Professor Jasper Tempest (Ben Miller, Bridgerton) once again using his unique insight and analysis to help the police solve a range of intriguing crimes in the beautiful university city of Cambridge. Six months following Season 3's devastating finale, dark clouds loom over the team. Consumed by grief, Dan (Barney White) dives headfirst into his work under the supervision of DCI Goswami (Sunetra Sarker) who struggles to keep order. The Professor takes up a very unexpected new hobby - avoiding the police at all costs. Dr. Helena Goldberg (Juliet Stevenson) intervenes to help but soon begins to question her own integrity as his therapist. The police team continue to fight complex and dangerous cases with the addition of an eager new team member, DC Chloe Highsmith (Rhian Blundell). The Dean (Douglas Reith) is struck by the shock return of an old flame, Zelda (Zoë Wanamaker) - Adelaide's sister and Jasper's aunt. Love is on the horizon and even Jasper feels heartstrings plucked in his own hear. Actor: Ben Miller;Barney White;Juliet Stevenson;Junes Callaert;Angus Yellowlees;Mia Gill;Gareth Kennerley;CJ Beckford;Phoebe Sparrow;Sunetra Sarker;James Hogan;Rhian Blundell;Zoë Wanamaker;Loveday Smith;Douglas Reith;Sarah Woodward;Nicholas Jones;Maria Lamont. Author: Stephen Brady. Director: Jake Harvey;Dries Vos. Producer: Jake Harvey.
- MPAA rating : PG-13 (Parents Strongly Cautioned)
- Package Dimensions : 7.5 x 5.4 x 0.6 inches; 4 ounces
- Media Format : DVD, NTSC
- Run time : 5 hours and 30 minutes
- Release date : September 16, 2025
- Actors : Ben Miller, Barney White, Juliet Stevenson, Junes Callaert, Angus Yellowlees
- Subtitles: : Spanish
- Studio : PBS
- Country of Origin : USA
