Plot summary
Reese takes the case of Zoe Morgan, a professional fixer who uses her high-profile connections to perform various services for her own clients. Zoe is hired to retrieve an incriminating recording of a pharmaceutical executive from a rival company, but comes under threat when she hears the contents of the recording itself and realizes that her employer is just as corrupt as his rival. Finch finds that Zoe's case is connected to that of Dana Miller, a POI whom he was unable to save before meeting Reese. With Zoe's help, Reese exposes the pharmaceutical's corruption and Finch short sells their stock to ensure their downfall, finally getting justice for Miller.
Meanwhile, Carter takes a homicide case when the murder weapon is proven to be the same one used in the "Elias, M." case. She learns that the victim was killed with the same knife he used to murder Elias' mother Marlene years prior. Carter finds her friend, retired detective Bernie Sullivan, murdered in his apartment, with the killer fleeing the scene.
Credits
Adapted from Wikipedia contributors, Person of Interest season 1. HTML formatting and reference markers removed.