On this week's Person of Interest…

Leon's number comes back up and Reese saves him from the Russian mafia.

A surgeon named Maddy has her number come up. She is blackmailed into making a mistake during the surgery of the high profile, Oliver Veldt.

Leon discovers that if Oliver dies, shareholders stand to make a lot of money.

Wesley Alastair, a former MI-6 agent, has been hired to blackmail Maddy and kill her wife, Amy, if she refuses.

Reese saves Amy and beats Wesley, who reveals that the two have met before in Istanbul. He plans to see Reese again.

Agent Snow tries to send Carter a message to give to Reese that someone, (who we know as Reese's former CIA partner Kara) is planning something big.

Reese asks if Carter really wants to know more secrets.