Plot summary
Nikita goes to Quebec to pose as Josephine, a cover of hers during Division to reunite with Emil Voss, a man Division forced her to have a relationship with. She is running on a tip from Ryan, who was ignored by his superiors, that Voss is going to sell a dirty bomb. However, it is revealed Voss is trying to defect but Gogol are trying to stop him and obtain the weapon. Nikita and Voss successfully evade Gogol in smuggling the bomb to the States, but Nikita later learns that Division has set up the operation to take out Nikita and Ryan and get the bomb themselves; Voss is also killed.
When Division is about to take off with the bomb, Gogol agents arrive, though Nikita outsmarts both parties and has Ryan deliver the bomb to the CIA, which results in a promotion to be allowed more access. Meanwhile, Michael interferes with Alex's growing feelings with Nathan, but by the end of the episode she and Nathan start kissing.
Credits
Adapted from Wikipedia contributors, Nikita season 1. HTML formatting and reference markers removed.