As a prequel to the much-admired Inspector Morse, Endeavour, filmed in Oxfordshire, debuted in 2012 with a feature length story to celebrate the 25th anniversary of Morse. Consequently, this one off became the highest performing new drama title to air on ITV that year.
With Shaun Evans in the lead role of young Morse, Roger Allam as Detective Inspector Fred Thursday, and written by Russell Lewis, who wrote for Morse and devised Lewis, the drama instantly became a hit with viewers and critics.
The stories are inspired by the character created by acclaimed novelist Colin Dexter, whose first Morse story was published in 1975. Colin continues his association with the drama acting as a consultant to Endeavour producers, Mammoth Screen.
Now, a very famous TV detective comes back to our screens this weekend. You may have heard of him: Inspector Morse. But this story tells us about his young life in the police force.
Endeavour was piloted last year, and attracted millions in the ratings - and now four feature length films have been made.
Morse's story has always been told in the city of Oxford - and this is no different. Divya Kohli went to meet the cast and crew.
ITV has commissioned a full series of the recent one-off Inspector Morse prequel 'Endeavour'. The original Oxford-based drama series - based on the novels by Colin Dexter, starred the late John Thaw as Inspector Morse. His sidekick 'Lewis' played by Kevin Whateley has his own spin-off series too.