The team receives the number of Maria Martinez , an engineer working for the international energy company HydralCorp. Maria is working to clear the name of Omar Risha , a man from Iraq suspected of being a terrorist.
The team witness Leona Wainwright being killed by a suicide bomber. She worked for the government, managing security clearances; Finch deduces from cell phone information that Vigilance killed her. Their next number, prosecutor Matthew Reed , sends Reese and Shaw to a high school reunion in Westchester.
The new number is Congressman Roger McCourt , who serves on the powerful Rules Committee. The team is initially baffled: He has no obvious enemies. They eventually discover a connection to Decima:
The Machine provides Grace’s number as a result, and Reese, Shaw and Root work to protect her while evading Decima, who use Samaritan to spy on them within the range of New York.
In a series of flashbacks to 2010, the narrative reveals the backstory on Collier, the face of Vigilance. His brother had been falsely accused of terrorist activities, held without trial, and had committed suicide as a result.
Person of Interest S04E01, The team members have adopted cover lives: Finch is a visiting college professor, Reese is an NYPD narcotics detective, and Shaw works at the cosmetics counter of a department store.
