A detective discovers Michael's stash of explosives, forcing him to work quickly to hide them before she can obtain a warrant. Elsewhere, the team looks for a kidnapping victim and uses an unusual form of interrogation.

Michael infiltrates a gang in order to take down a highly sought-after criminal and ends up befriending a gang member who may not be as bad as he seems. Elsewhere, Sam contends with an IRS agent who's related to a woman from Sam's past.