S1E1 One day,Dr John Watson ran into his old friend Mike Stamford,who suggested John and a college of Mike's to live together and share the rent.Once John met the man Mike told him,he was immediately impressed by the man's knowledge of him,and more surprised that this man was never told about John ever before.It later proved that this Sherlock Holmes had a great skill of deduction.And what's more he was arrogant and ignorant but still quite a genius.At that time three familiar suicides had happened and the forth soon took place.John went to the crime scene with Sherlock and helped him analysis the corpse.Sherlock finally found the killer and decided to risk his life playing with him.At the very last moment,John shot the killer and saved Sherlock from death.