The team's investigation of a murdered botanist brings them into the world of medical marijuana. Cho runs into Summer while working with the rapid response team.
Megan throws Don a surprise birthday party, the war between Pete Campbell and Roger Sterling intensifies, and new mother Joan begins to wonder if she still has a job when she's ready to come back.moreless
Lane finds a wallet in a cab and decides how to handle it. The fallout from the party leaves Don and Megan upset. Joan has a hard time dealing with her mother.
A crew of bank robbers disguised as classic television doctors take hostages which include Castle and Martha. But things are complicated by the fact that Beckett's on the outside having her every move scrutinized by a hostage negotiator and Castle's on the inside with information that the hostages are just a distraction for a more ominous plan.moreless
The PHD must deal with a case of mistaken identity in order to get to the bottom of an investigation.
While they're busy with the case, Brenda is involved in a different case: Pope's divorce. After being called to testify, Brenda finds that both her career and reputation are on the line.
Frasier fears that he's getting a little too predictable, and engages in a "crime" for the thrill of it.