Thanksgiving with Marshall's family is stressful when Lily thinks she might be pregnant. Robin, Barney, Ted spend the holiday volunteering.
A professor from Lewis’ past tips off the BAU to an alarming number of overdose deaths of patients who just completed rehab.
While trying to have a relaxing day at an outdoor spa, Jane and Maura discover the murder of a pregnant woman.
The NCIS team investigates when a Marine is attacked in his home and his daughter is kidnapped on Halloween; Abby's Halloween costume leaves McGee and Tony speechless.
Determined to speak with Sara, Michael enlists T-Bag's help to get to the only phone in Sona; Lincoln tries a daring rescue; Whistler comes clean to Michael; Bellick makes an enemy while trying to get back on his feet.
