엘리멘트리시즌 2 이미지 교체에피소드 번호1Step NineOverviewHolmes and Watson travel to London to help track down an old mentor and investigate an unsolved mystery. Meanwhile, Mycroft Holmes, Sherlock's estranged brother, reunites with Sherlock and reveals some secrets of his own.Air dateSeptember 26, 2013Runtime (min)45
