Elizabeth Grullon

After two undercover DEA agents are murdered and a third goes missing, the BAU joins the NSA to investigate whether an underground Internet drug syndicate is involved. Also, Hotch hopes the team's work with the NSA brings them closer to finding the "Dirty Dozen" hitmen ring.

As his clinical begins, Devon treats his first patient with a revolutionary medical fluid that doesn’t go as planned. Meanwhile, an overdosed John Doe is rushed to Chastain, leading Conrad straight into a much bigger scandal than he expected. Then, a shocking secret regarding Cade’s past is discovered.

Anderson Vaughan Investigations takes on a case that hits close to home when Valerie's estranged husband, Gordon, comes to them for help after his sister suffers horrible side effects in a Multiple Sclerosis clinical trial by a big pharmaceutical company. Meanwhile, Alice is following her biggest lead yet in tracking down Ben, as he's in the midst of luring their next victim, Princess Zara Al-Salim, into a multimillion dollar fraudulent real estate investment.