On this week's Person of Interest...

Reese, Finch and Bear save a veterinarian.

The Machine comes up with a number for a top notch prosecutor who is married to a defense attorney.

She is accused of murdering her husband. Her best friend was having an affair with her husband. Turns out the husband faked his death and was waiting to reunite with the best friend.

The wife plans to kill her husband and Reese leaves the husband a gun rather than save either of them.

Carter's new partner is feeding information to HR.