Ray, Ani and Paul take precautionary measures to elude detection and untangle a dark mystery; Frank deals with the fallout of his betrayal.
When successful businessmen in Detroit are targeted by an anger-driven power-assertive Unsub, the BAU is called in to investigate.
Tony is determined to find Ziva.
A maintenance worker with a dark history puts a local teenager in danger; Sam has to choose which of his colleagues he'll take to the football game.
Reese and Finch are puzzled when the machine names a 6-month-old baby as the latest person of interest; Detective Carter questions her allegiances when Elias resurfaces.