While Annie is in Columbia dealing with Arthur Campbell's son Teo, in the U.S Joan is being debriefed by Auggie. He tells her that Henry Wilcox has moles in the CIA, Seth Newman being one of them and he is now dead thanks to Annie. Someone needs to go back to his apartment to fix it back up so that nothing could be traced back to Annie or the CIA. Joan volunteers to do it even though it's very risky and her position at the CIA is already being questioned since she couldn't figure out her husband was having an "affair". When she finishes up at the Newman apartment, which included fixing the broken closet, cleaning up all the glass, and making it seem like a crazy fight between two CIA Agents did not take place, she finds several hidden files in a secret safe behing a portrait on the wall.
Meanwhile, in Columbia, Annie is trying to get Teo to come back home, as a favor to Arthur. She reaches out to him several times, but each time he acts as if she's the enemy. Annie wants to believe Teo is still an undercover agent but she has to realize that if he's an agent gone too deep or has been corrupted, she has to abandon her rescue mission; she plants a location device on him . She needs help to seperate Teo from the group he's working forl she meets with the head of OP for Columbia, Calder, and makes a deal: she'll give him the location of the terrorist group ALC,( which Teo is supposed to be undercover in) implicated in the bomb threat as long as she gets to take Teo Braga for her own purposes. They agree.
Back at home, Auggie gets upset that Annie is putting herself in danger for Arthur and he gets into an argument with him, Arthur advices him "If you can't live with secrets you shoouldn't be dating a spy."
Calder and his men, along with Annie raid the ALC stronghold. It's in the middle of an urban jungle type setting. A helicopter drops in and alerts the terrorists; a shoot out ensues and the Agents soon capture the group and Teo, but not before beating him up a little. They take him in for interrogation, hang him by the wrists from the ceiling and proceed to ask him who the target was for the bomb. He's uncooperative, even when Annie tells him she knows his cover [remember he was an Agent on a mission and got in too deep]. Teo escapses. Annie figures out what building Teo could be targeting and she convinces Calder to send a bomb squad over the hotel where importan people are meeting . She thinks Teo's aim is to kill them all.
At a hearing where Joan is being reviewed for the Chief position (DCS), Senator Pierson from the panel has a sort of vendetta against Joan but here it's revealed that the files she found in Newman's apartment were incriminating pictures of the Senator. Joan showed them to her, effectively threatening the Senator, and locking the job. Or completely ruining the opportunity for herself.
"Sorry for kicking you, I couldn't blow my cover... The only way to defeat them is to become one of them" Braga says, revealing to Annie that he is in fact an undercover agent. She finds him on the roof of the building across from the hotel she knew he was targeting where important leaders were meeting. He tells her he has a mission to complete but he won't be clear on what exactly that means or who he's currently pointing his sniper at to kill. Annie has a gun pointed at Teo warning him not to shoot, she's questioning whether or not he's an agent or just corrupt. The screen blacks out and all we hear is a gun shot. She lets him shoot. It turns out he killed Pedro Mendez, a devoted member of the ALC. He was strapped with a bomb underneath his shirt and could have killed everyone in the building. Teo Braga is still on the CIA's side afterall.
The episode ends with Joan being promoted to DCS and Annie heading to Auggie's for a reunion since the haven't been together since the last episode