Natalie throws a Fourth of July party and invites David as her date. Margaux ramps up her plan to remove anyone who stands in her way.
A case involving the abduction of several women becomes personal for the red cell team when one of the victims, `Jane Doe' is never reported as missing.
When packages with gruesome contents are sent to six people in the Washington DC area, the BAU must find what connects them.
Loners and men who won't be missed are being targeted by a killer, while Jane finds that keeping her pregnancy quiet will not be easy.
Jen and Greg go to great lengths to find the perfect babysitter for Lark and John becomes testy when shopping for a mattress.