On this week's Person of Interest…

Finch goes undercover at a tech agency determining where a tech executives loyalties lie.

Reese goes after Shaw, who meets up with Finch. She decides to hunt down Root.

Reese and Finch discover that the head of the company is a spy working for the Chinese government, selling them information. Turns out the secret group that had been running Kara Stanton is the real ones behind the plot.

Cal Beecher decides to investigate his tip by speaking with Elias. This forces his godfather to put a hit out on him and kill him.