Sherlock is reunited with M, a British criminal who appears to have followed him to New York. Meanwhile, Joan has reservations about leaving Sherlock and taking on a new client.
Janet's overzealous direction of the school play is cause for concern for Kady's kindergarten teacher.
Liz deals with her apartment building going condo, Jack and Tracy consider fatherhood, and Kenneth seeks to make TGS more environmentally friendly.
Jack introduces Liz to his eccentric friend Gavin Volure (Steve Martin), while Tracy worries that his children are plotting to kill him.
Liz discovers that Drew's handsomeness allows him to get a variety of benefits in life, while Jack attempts to renegotiate Tracy's contract.