Season two of the BBC’s reboot of the Arthur Conan Doyle classics concludes with Sherlock coming full circle as he again faces off against his nemesis, James Moriarty. Our hero finds himself ensnared at the centre of a web of lies of Moriarty’s making, as he battles to save both his own reputation and the lives of his closest friends.

Spoilers below …

It has been nearly 17 long months since the first season of the Steven Moffat/Mark Gatiss-penned reboot of Sherlock left us with a literally explosive cliffhanger as Holmes faced off against his evil alter ego Jim Moriarty for the first time. As this new three-part second season begins we return to the scene of this climactic showdown to see its resolution, before launching into a story of sex, scandal and a mind-bending mystery which pits Sherlock and John Watson against a female foe who proves to be their equal at every turn: ‘The Woman’, dominatrix Irene Adler.

Spoilers from here on in, naturally …