Plot summary
Michael and Nikita break into a building that Heidecker visited to work for an organization Birkhoff calls "the Shop", who produce sophisticated technology. They find a recording of Heidecker, who presents Michael a prosthetic hand, which will be attached if they break into a biotech lab in Nanjing, China, and steal a prion. They succeed, and arrange an exchange; Michael's hand would be attached if she delivers the prion to the Shop. The Chinese also finds them; after Nikita neutralizes them, she hands the prion to an automated car. Meanwhile, Sonya stops a plan to destroy the tracker array of all agents.
Ryan fears Division agents are plotting a mutiny after Alex told them about Danforth's contingency. Alex, Sean and Sonya discover that Rachel is leading it, but during interrogation Ryan learns that Alex is the true engineer; Alex shoots Ryan, who is left in a coma by the time Nikita returns.
Credits
Adapted from Wikipedia contributors, Nikita season 3. HTML formatting and reference markers removed.