Catherine attempts reparations for the damage she has caused, starting with James Ashford, whose life and future she destroyed in season three. But reparations, the season discovers, are not the same as forgiveness, and sometimes the damage is permanent. She uses her political power to restore James's reputation but discovers that shame, once inflicted, does not simply lift because the perpetrator has decided to be good. Marcus, initially hopeful that Catherine's change of heart means they might have a future together, discovers that the woman who killed his love for cruelty is not the same woman who chooses goodness — she is diminished, haunted, and no longer the formidable person he fell in love with. As Catherine moves into her 40s, the show shifts setting to the countryside, where Catherine has begun a quiet, almost monastic life of genuine good works without the political calculation. She discovers that Henry Sheffield has died and his political faction is crumbling. The conspiracy she once served and then betrayed is dissolving without her intervention. The season ends with Catherine finally, exhaustedly at peace with the understanding that power is not worth having — and having had it, she cannot go back.
