Maggie and OA lead the search for an abducted former biological weapons chemist.

Gabriel has surprising information. Elizabeth begins to take family matters into her own hands. Stan receives upsetting news from his past and turns to Sandra for support.

Martha and Clark’s marriage meets its most challenging test yet. As pressures on Philip intensify, Elizabeth turns to Gabriel with a difficult request. Nina receives a new assignment that reconnects…

Philip faces a moral dilemma while developing an asset. Philip and Elizabeth’s friction escalates. Stan develops a theory with serious repercussions for national security. Paige makes a surprising birthday wish.

Danny and Jackie are assigned to protect a key witness in a Russian mob trial, but when an attempt is made on her life, they realize there is a leak…

Dr. Alexei reveals what the Russians have been building, and Eleven sees where Billy has been. Dustin and Erica stage a daring rescue.

Holmes and Watson find themselves digging through the dark world of the mob to find a killer when they discover the body of a former assassin. Meanwhile, Watson helps a…

Liz is forced to reunite with Red in order to track down Berlin.

Sen. Paley investigates why Saul went to Moscow. Carrie’s team launches the operation to exfiltrate Simone. Keane’s recent decision backfires.

When the investigation into the contract killing of a jeweler uncovers his plan to roll over on his Russian mob connections to a federal prosecutor, as well as an unhappy…

The suspicious death of a Russian model leads the detectives to suspect medical malpractice.