Although heavily armed, Shaw does not hit Martine and flees with Root, who arrives at the shootout in the department store driving a motorcycle. Fusco helps them in their getaway route. The Machine delivers the number of Elias, and Reese follows Anthony and him through the boardwalk. They meet Elias' accountant and financial advisor Bruce, and Reese watches Link taking photos of Elias. Then he approaches to Elias and Anthony and tells them that Elias is in danger since the Brotherhood is hunting him down, but Elias does not seem to be worried. Soon Reese saves Elias from a hitman and joins Anthony in his protection. They meet the criminal mobster Gino, but soon they learn that he has joined the Brotherhood. Immediately after, Domenic meets Gino and he learns about Elias' accountant Bruce, and he believes finding Bruce would be the best way to capture Elias. Elias, Anthony and Reese head to an abandoned building owned by Elias where he had restored the penthouse, but the Brotherhood arrives and there is a shootout. Reese and Elias flee and meet Finch in a getaway car, but Anthony is wounded and captured by Dominic. Elias refuses to leave his friend behind and turn himself in to Domenic expecting to release Anthony. Meanwhile, Shaw's identity is compromised and Root keeps her safe. Greer believes The Machine is protecting the identity of the team.
"The Devil You Know" is another great episode of "Person of Interest", with another plot full of action. It is impressive how the skilled Shaw misses Martine, although having a heavy weapon. How Link survives with minor injuries after an explosion like that is also amazing. Fusco this time helped only a little since he called the attention of Martine when he stopped the truck where Shaw and Root were. He must keep a low profile to continue operative. The war between Elias and the Brotherhood is promising. Looking forward to seeing it on the next episodes. My vote is nine.
Title (Brazil): "The Devil You Know"