Plot summary
The president sends Marines to prepare a strike against Division. Percy reveals to Grayson that Crossbow is a bluff; it never worked, he is instead using his triggers to destroy nuclear reactors. He is willing to stand down so long as he has immunity from prosecution. Realizing that Roan has the second trigger, Sean and Alex evade the Marines to find him. After Michael takes operations, Nikita finds Percy in his office; if he dies, Roan will be alerted and detonate the trigger. Nikita forces Percy to admit to Division that he criminalized it, but goads Division agents to kill him.
Nikita must escape Division with Percy alive. He then tries to drop Nikita down the hatch she entered earlier, but she gets the upper hand, and he falls to his death. Before Roan can activate the trigger underneath Washington, D.C., Alex and Sean intervene, resulting in Roan's electrocution. To prevent more bloodshed, Nikita convinces the Vice President to let her back into Division and get the officers to surrender, which succeeds. Fletcher later arrives; he will run Division to clean up its own mess and locate Percy's financer (David S. Lee), and Amanda, who has the remaining black box.
Credits
Adapted from Wikipedia contributors, Nikita season 2. HTML formatting and reference markers removed.