Plot summary
After learning one of Amanda's Shop partners is called Smith, Nikita survives a trap by the organization in an automated car. Birkhoff recovers a chip from the car that leads to the Shop's secret satellite network, where the team learns Smith is going after Miriam Hasan, a human rights activist that threatens their child kidnapping operation. After Miriam offers Alex a job as a special envoy on human trafficking at the United Nations, Smith attacks Miriam, but is then killed by Nikita. Birkhoff finds a Shop facility in Michigan. Michael and Nikita capture a biologist who was developing an upgraded version of the kill chip, by using nano-cells to rupture every blood vessel in the subject.
When the team realize Miriam was infected in the attack, Alex and Michael save her using their only vial of the antidote. Nikita tracks down Amanda, who reveals that the entire mission was a red herring; Miriam was not infected, but Michael is; the nano-cells were laced inside his prosthetic hand. Amanda is willing to give her the antidote if Nikita assassinates Spencer.
Credits
Adapted from Wikipedia contributors, Nikita season 3. HTML formatting and reference markers removed.