The Doctor and Bill are summoned by UNIT to investigate a strange discovery in Egypt. What they find beneath the sands could mean the end of the world.

Harley organizes a secret Santa for her friends. The results are as weird as you'd expect.

Sherlock sees young Archie for what he really is. A budding sociopath. In the following years, Sherlock does his best to keep Archie from slipping into darkness. Their tenuous balancing act threatens to topple when Jim Moriarty exerts his influence.

Victor Zsasz has some unconventional and bloody interpretations of what, exactly, the reason for the season means.

Halloween is the chance for everyone, including Gotham's costumed villains, to be someone else. The Scarecrow just doesn't feel the need.