S2, E16: Reese's counterpart, lethal and sexy government operative Samantha Shaw (guest star Sarah Shahi), who tracks and stops terroristthreats before they occur, finds herself on the run – and the new focus of Reese and Finch's attention. However, their pursuitproves to be their most formidable ever when they discover that her remarkably elusive skills equal their own. Creator/executiveproducer Jonathan Nolan directs.