Joan and Kitty try to prove that a string of murders, stemming from an old case Sherlock and Kitty solved in London, is connected to an international government conspiracy with…

Holmes’ former protégé, Kitty Winter, returns to New York after a three-year absence to warn him that a killer is eliminating everyone involved with a case they worked on together…

A strange woman shows up claiming to be Clark’s biological mother…and that his father is Lionel. Meanwhile Lana decides to meet with the man who is her biological father.