Completing the challenges and struggles where the last season stops that follows the adventures of Morris Endeavor, an intelligent and courageous detective, who by the help of his senior, solves the mysterious cases that took place across Oxford. A new season begins with Endeavor struggles against protecting a criminal during receiving his treatment.
It's hard to predict what will come next for the lost and lonely Morse at this point. For Endeavour's viewers, though, this is shaping up to be a richly rewarding fourth series.