Finch knows that winning big means betting big, and it's still clear that Person of Interest is worth betting on.

"All In" divided the episode into two stories, allowing Reese, Finch and Leon to worry about a former card shark going up against a casino boss, while Carter was digging her way into the conspiracy that is the rebuilding corrupt police force known as HR.

I'm a huge fan of Leon and love how the show continuously has his number come up for Reese to swoop in and save him. Not only does he have a great personality that is smarmy and heart-filled, but Leon can contribute to helping out the case rather than be a useless nuisance.

The intro of the episode was a great way to get Leon involved this go around, while having a fantastic attack from both Bear and Reese on the bad guys. It was even funny that Leon knew exactly what was about to happen after he recognized that he was probably going to be killed.

The case of the week was pretty simple in its execution, but creative enough that it didn't feel like an overly cliche casino story of taking down the bad guy boss and winning money.

At the same time, rather than include poker, something that's been done repetitively, baccarat was played. It was simple enough to explain, and a classic game that's been associated with international spies. It's even the game that James Bond plays in the novel Casino Royale.

I also thought it was clever utilizing older players as the key to the money laundering scheme. You really never would ever suspect what was going on, although having a pile of medicine bottles in the trash might have been able to give it all away.

And while I liked the slight feel of an Ocean's 11 movie with Reese, Finch, and Leon,  taking down the casino felt far easier and less intricate than it probably should have been. That said, the whole winning back the money was made far more intriguing and something to root for because of the show's score.

The music on this series is very well done and adds to whatever mood the show is trying to convey whether it's suspense, action, drama, or even making money at the baccarat table. It works in perfect harmony with everything going on during the scenes. I think sometimes people really forget how much it adds.

Was there ever any doubt that Reese and Finch would succeed? Sure, some cliche thugs got in the way but classic takedowns followed.

Carter and slightly Fusco, who had the best line of "There's no Santa. It was your parents." were involved with HR, the villainous group that's been in the shadows after their previous defeat.

I had to look up the characters involved because of the variety of connections, and the fact it's been a while since we've dealt with the rebuilding HR. Interestingly enough, the head of HR was back trying to fix further partnership with the Russian mob while setting up good cop Szymanski.

Poor Szymanski. No more Geico commercials on this show.

Carter was once again digging her way into a situation that's going to get her in danger, and although she was able to help Szymanski get out of the setup, she wasn't able to stop him from being shot.

I had a feeling that Detective Raymond Terney was not around because he was another good guy. It was certainly a wild twist having the ending of the show finish out with the head of HR shooting Szymanski and his lawyer, but then having Terney shoot him to cover up the murder.

HR is a crafty corrupt force.

Although, I have to say that the real standout moment was the Reese and Finch talk about Finch not being able to be with Grace. It was such a sad scene and you could really feel Finch missing his love and Reese knowing there's not much more you could say. It's good that at least Reese and Finch have a friendship and purpose, but the price of being the hero is certainly a painful one to pay.

I still have hope that maybe one day, Finch can find a way to be with Grace again.

Sean McKenna was a TV Fanatic Staff Writer. He retired in May of 2017. Follow him on Twitter.