The first of three new 90-minute films, A Scandal in Belgravia airs at 8.10 pm on Sunday 1st January 2012.

Compromising photographs and a case of blackmail threaten the very heart of the British establishment, but for Sherlock and John the game is on in more ways than one as they find themselves battling international terrorism, rogue CIA agents, and a secret conspiracy involving the British government.

> Pre-order the Series 2 DVD on Amazon.

> Buy the Series 1 DVD on Amazon.

Are you looking forward to Series 2? Let us know below…