Susan's longtime book agent and dear friend, Lonny Moon (Wallace Shawn), gets into financial trouble; Bree reburies Rex amid police suspicions.
On the season finale, the team scrambles to prove Hotch’s innocence after he is apprehended by a SWAT team and suspected of conspiracy.
The team takes a second look into a lieutenant's death after the blogger who accused them of a cover-up turns up dead.
The murder of a prep school student points to a mystery woman who may have been extorting money from the victim's wealthy father.
The body of a single mother, missing since 1981, is found in the trunk of a car, prompting Lilly and the team to take another look at her case.