|Air Date||April 24, 2013|
|Directed By||John Dahl|
|Written By||Joshua Brand and Melissa James Gibson|
|Previous Episode||Covert War|
|Next Episode||The Colonel|
|Images of The Oath|
One of Elizabeth's agents has key intel for sale, but she and Philip find themselves taking increasingly greater risks for what could well be a set-up. Meanwhile, Stan's pursuit of Directorate S suddenly begins to yield unexpected results.
Elizabeth's new source, Sanford Prince, tells her he has recruited an Air Force colonel who will give important information on the SDI project for $50,000. After seeing some of this information, Moscow orders Elizabeth to meet with the colonel despite her misgivings. To see whether the FBI are on to them, Philip asks Martha to plant a bug in Gaad's office, promising to marry her to ensure her loyalty. He does so in a private ceremony witnessed only by her parents and Clark's "mother" (Claudia) and "sister" (Elizabeth). With the planned meeting only a few days away, Prince is arrested for an unrelated child support issue. Viola tells the FBI about being forced to plant the bug; they provide the KGB with disinformation through it. From her account, and that of the CIA official that the Jennings abducted, Stan and Gaad conclude that they are looking for a thirtysomething married couple and produce a sketch of them. Meanwhile, Nina is sworn into Directorate S and, after a conversation with Stan, confesses her spying to Arkady and offers to become a re-doubled agent.