In a dynamic new portrayal of Arthur Conan Doyle's most famous characters, Sherlock Holmes sends Holmes (Robert Downey Jr.) and his stalwart partner, Dr. Watson (Jude Law) on their latest challenge. The only woman ever to have bested Holmes, Irene Adler (Rachel McAdams) again sparks her tempestuous relationship with the detective, while a mysterious new nemesis—Blackwood (Mark Strong)—constructs a deadly plot that could destroy the country. Revealing fighting skills as lethal as his legendary intellect, Holmes will battle as never before to bring down Blackwood and unravel his plan. -- Warner Brothers