The first season. Because Tony brought it over. So on Monday and Tuesday when I stayed home from work, I just watched that. Elaine caught some of it (though she went to work every day) and found the show interesting.
Remember, I watched the entire first season in two days and was sick.
That said, here's Nikita as I understand it. While the films Point of No Return and La Femme Nikita both open with Nikita involved in a robbery, the series opens with Alex (who I've called Nikita wanna-be) in a robbery. Her partner leaves her behind when the robbery goes bad. She's taken to prison and then to Division.
There she's trained. Unlike in the previous films (and maybe the first TV show) these assassins have trackers implanted in them and the trackers are also kill switches.
Michael is Shane West's character's name. (I thought it was Max. Yeah, stupid for me not to know another Mike! :D) He is the trainer like Gabriel Byrne in Point of No Return.
Alex didn't just wind up in Division. Nikita and she are working together.
In fact, Nikita was at that robbery. And intentionally left her there (as Alex knew, it was their plan). They wanted Alex to be able to watch Division from the inside.
Three years prior, Division killed Nikita's civilian boyfriend because she's fallen in love and compromised her loyalties. That's when Nikita goes rogue and decides to take down Division.
Seymour is the computer genius at Division. He now works with Nikita and Max. Season one is his slowly realizing how crooked Division is -- specifically Amanda (the Anne Bancroft role in Point of No Return and Jeanne Moureau in La Femme Nikita) and Percy.
Nikita tries to take down Division throughout season one. Michael and she fight and he tries to capture her but he won't kill her. She tries to help him avenge the deaths of his wife and daughter when he has a shot at the killer. In that episode, he blows the kill and is ready to lose his own life killing the man but Nikita calls security at the airport and gets him arrested. He's very mad about that. Later he will make Nikita risk everything to track down that man.
When Michael has a shot at killing him, he won't. Why? The man's Division. He was ordered to bomb that car (though the target was Michael). By whom? Percy.
That's what turns Michael against Percy. Though he still believes Division is capable of doing some good.
Alex was a kill for Nikita. Only Nikita refused to kill her. This was when Alex was a small child. Nikita was sent in to kill a Russian oligarch and his family. That was Alex's father. She couldn't kill the child. Years later they team up but Alex doesn't know that part of the story. Percy will use that in the last two episodes of season one to try to turn Alex against Nikita. It will create a rift but she doesn't help Percy kill Nikita.
The point in bringing this up is that both Percy and Amanda will avoid killing Alex. That may be due to who she really is or due to some larger plan we're not aware of yet.
Percy turns on Michael after he flushes Michael out as a double-agent (Percy already knew and it's obvious in the episode where Percy figures it out). When Michael's imprisoned in Division, Seymour ends up making the decision to free Michael. That's when he's officially with Michael and Nikita.
Alex's kill chip is disabled by Amanda in the last episode of season one. When Percy flushes Michael out, he hits a button and Michael falls to the floor so apparently Michael's tracking chip had something similar (which Michael had no idea about).
So that's season one.
Here's C.I.'s "Iraq snapshot:"