Sherlock and John lock horns with their old enemy – James Moriarty, consultant criminal and evil genius – in one final problem that tests loyalty and courage to their very limits. But this is only the beginning of a complex and deadly scheme with a single goal: the downfall, ruin and obliteration of Sherlock Holmes.

> Pre-order the Series 2 DVD on Amazon.

The Reichenbach Fall, the concluding part of Series 2, airs at 9pm on Sunday 15th January 2012. To whet your appetite, here are ten teasing lines of dialogue from the episode…

» ‘This is the story of Sir Boast-A-Lot …’

» ‘Would you mind slipping your hand into my pocket?’

» ‘Put the hat on!’

» ‘Every fairytale needs a good, old-fashioned villain.’

» ‘Are you an idiot, a drunk or a coward?’

» ‘Police! Sort of.’

» ‘No one could fake being such an annoying dick all of the time.’

» ‘Do you think you could survive for just a few minutes without showing off?’

» ‘Molly, I think I’m going to die.’

» ‘Here we are at last: you and me, Sherlock, and our problem – the final problem.’

> Buy the Series 1 DVD on Amazon.

Are you looking forward to The Reichenbach Fall? Let us know below…