When Nikita (Maggie Q) was a troubled teenager on death row, she was "recruited" by a secret U.S. black ops program known only as Division. They faked her execution and turned her into an assassin.
Nikita never lost her humanity, and when she learned that Division was a corrupt organisation, she went rogue, exposing their covert operations, destroying their plans, righting their wrongs.
Two years later, she finds herself working for a new Division, fighting alongside a team of allies she's gathered throughout her adventures. They have vowed to clean up the mess left behind by the old Division – rogue spies, violent assassins – Nikita is hunting down killers just as skilled as she is.
In her campaign to end Division's legacy, Nikita teamed with Michael (Shane West). He's the man who trained her – and the man who loves her. A stalwart soldier in the fight, Michael is determined to build a life for himself and Nikita, a life beyond the turmoil of their day jobs.
Nikita also teamed with Alex (Lyndsy Fonseca), a girl with a violent past and a shared taste for vengeance. Torn from a life of wealth and comfort as a Russian heiress, Alex has turned away from her old life to help Nikita.
Same goes for Birkhoff (Aaron Stanford), Division's former tech specialist, also known as the elusive hacker, "Shadowwalker". Birkhoff had built himself a large (and illegal) financial portfolio when Nikita caught up with him.
She enlisted him in the fight, unwillingly at first. He has always held a soft spot for her. Now he's in charge of designing new gadgets and gear for Nikita's team.
Also joining the fight – Owen (Devon Sawa) a former "cleaner" for the black ops group, a highly skilled assassin who not only shares a connection with Nikita, he's the key to unlocking Division's deep dark past.
And finally, Navy Seal Sean Pierce (Dillon Casey) joined the team last season, after being assigned to monitor Division by powerful forces in Washington. Along the way, he started falling for Alex. Now he's wondering if keeping Division open is a good idea – for either of them.
The war against Division's demons is led by Ryan Fletcher (Noah Bean), a former CIA analyst whose life has been saved by Nikita. Fletcher made a deal with the President to keep Division running, with the understanding that it would be cleaned up quickly and quietly or else.
That won't be easy with Amanda (Melinda Clarke) in the world. Formerly Division's second-in-command, she manipulated her way into its top spot, just in time for Nikita to take her down.
Amanda's out for vengeance herself, and her ties to Nikita run deep. She taught her how to walk, talk – and how to kill. Nikita was her star pupil at Division, and Amanda is not done teaching her a lesson.
Entering her final season, Nikita will wrap up her mission with a final six-episode run.
Framed for assassinating the President at the end of last season, Nikita (Maggie Q) finds herself at the beginning of season four alone and on the run, hunted as the most wanted woman in the world.
But when she follows up a lead that could clear her name, Nikita unexpectedly finds herself reunited with her old team. Forced to work together again, Nikita and her allies have to get past their emotional wounds in order to take down their nemesis, Amanda (Melinda Clarke).
In the process, they discover that the plot to frame Nikita is actually part of a much larger conspiracy, one that could lead to global catastrophe.
Nikita is from Sesfonstein Productions, Inc. and Wonderland Sound and Vision in association with Warner Bros. Television, with executive producers Craig Silverstein (Bones, Standoff), David Levinson (The Commish), McG (Supernatural, Chuck, The O.C., Charlie's Angels movies), Peter Johnson (Supernatural, Chuck), Danny Cannon (CSI: Crime Scene Investigation, Dark Blue) and Carlos Coto (Heroes, 24).