Owen returns with information on one of Percy’s black boxes. Nikita returns to London with him to retrieve it but notices that Owen is acting strangely. Watch free, streaming full episodes of Nikita on cwtv.com. Nikita Video: Watch Nikita full episodes, previews, clips, interviews and more video. Nikita is a spy and assassin for a top secret U.S. government agency, who rebels against the system that created her and will stop at nothing to bring their powerful operation to an end.