Vieslav Krystyan

Now an agent, Alex gets a new apartment and is given a cover job. She meets her new neighbor Nathan who invites her to a party at his house. Nikita warns Alex about getting too involved with people but Alex struggles between her duties at Division and living a normal life. Nikita realizes Division has implanted a kill chip in Alex's head and sets out to gain control of the chip. While interrogating Birkhoff, Nikita stuns Ryan by revealing a secret.

In order to speed up her healing, Amanda sedates Alex after her last mission then takes advantage of Alex's drugged condition to question her about the secrets Amanda believes Alex is keeping. Nikita realizes Alex is in danger and tries to secure her another identity to smuggle her out of the country. However, Nikita's contact double-crosses her and she comes face to face with a surprising opponent. Meanwhile, Michael becomes suspicious of Alex and asks Birkhoff to investigate her.

While out on a mission for Division, Alex runs into Irina (guest star KSENIA SOLO - Black Swan, Life Unexpected), a woman from her past. Alex tries to help Irina break free from her captor, but her old friend double-crosses her and turns Alex over to Vlad (guest star MARK IVANIR - Holy Rollers, In Face of the Crime), a Russian mobster with a debt to settle. Nikita realizes Alex is in trouble and sets out to save her but runs into Michael who is searching for his missing agent. Realizing she can't compromise Alex's secret, Maggie must find a way to work with Michael to save Alex without getting her friend killed by Division.

After Michael learns that Percy has ordered Divison to kill anyone who could decrypt the black boxes, he sends Nikita in to save the last person on the list, a CIA cryptographer named Malcolm. Nikita kidnaps Malcom and takes him to Ryan for protection. Meanwhile, Percy turns on Alex.

In an explosive season finale, Percy makes a move to take over the CIA, Alex goes rogue and Michael gets trapped inside Division, making him unable to help Nikita ... who may have to pay with her life for helping Alex.

With Michael out of town, Nikita turns to Owen to help her track down and steal another black box from a Guardian. Unfortunately, she discovers that Owen is working for an unlikely employer that could jeopardize Nikita's whole operation. Amanda realizes Alex received privileged information about Semak and that information could only have come from Percy. Furious that Percy undermined her, Amanda strips him of all his amenities. Back home in Russia, Alex finally makes her move on Semak.