Seasons & episodes

S1 · E23The Final Problem, Act 1 2021-06-20 · 24 min＋

When William James Moriarty claims responsibility for being the Lord of Crime in all the papers, aristocratic condemnation and public anger falls upon the Moriartys. The final problem of the Moriarty Plan that William has concocted at long last begins.

S1 · E24The Final Problem, Act 2 2021-06-27 · 24 min＋

William aims to complete his plan with his death, as Albert and the others each carry out their roles. Meanwhile, Sherlock deduces William's true reason for having him vanquish the Lord of Crime. Overlooking London, the pair face each other one last time.