SuperWhoLock: The Mystery of Reichenbach
There was a time when the Doctor, Sherlock Holmes, John Watson, Sam, and Dean Winchester were together. After five years apart, Sherlock fell to his death. This caught the attention of the Doctor and the Winchesters. Especially Dean, who is accused for his death. It's up to John, Sam, Castiel, the Doctor, and Amy to clear his name. And a familiar face, who makes his glorious return, much to Dr. Watson's surprise.