With Fire

S3 E12: After Birkhoff gets a tip from Shadow bot that Ari (recurring guest star PETER OUTERBRIDGE) is in New York, Nikita and Owen swoop into pick him up before the FBI does. However, Ari reveals he planned everything for a chance to talk to Nikita. He tells her that Amanda has gone too far and is working with a terrorist who plans an attack on American soil. Ari wants 50 million dollars for the information that could lead to the terrorist's (guest star PITER MAREK – Castle) capture. Nikita and Michael are stunned when Ryan considers paying the bribe. Meanwhile, Sean is jealous of Alex and Owen's relationship.