Mortal Causes (S01E04)

The motto of the Scottish kings, Nemo mi impune lacessit ("Don't Mess With Me"), sets the stage for this gripping tale. DI John Rebus is ready for vengeance as he honors a deal made with crime lord Morris Gerald Cafferty, who helped him find the person responsible for his daughter’s life-threatening coma from a hit-and-run. Now, Cafferty demands repayment after his illegitimate son is brutally murdered. Rebus must navigate a treacherous landscape filled with gun trafficking, prison breaks, and extremist factions—both left and right—spouting hateful ideologies and inciting violence across the community.