Alex trains for a fight in this scene. It's courtesy of the Nikita episode "The Recruit."
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There's a battle inside Division on the installment "The Recruit." As you might expect, Alex gets involved.
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Nikita exchanges gunfire with Michael on the episode "The Recruit." She's trying to prevent a suicide mission.
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Nikita Season 1 Episode 7 Quotes

Alex: Nikita, this girl is worth saving.
Nikita: They are all, Alex.

You have an attachment to things from the past, or things that have passed on. It's ok to miss her, you know? Nikki was one in a million; a force of nature. Like a one woman Michael Bane movie, only with good acting.

Birkhoff