Fans are excited about the return of the popular TV series, 'Person of Interest', with its Season 4 premiere episode on September 23.

The first episode is entitled "Panopticon," and depict the police team struggling to come up with new strategies to go forward with their work. Also, they will have to change their identities to prevent being discovered by the Samaritan. Evidently, fans are going to notice that it will be hard for them to adapt to their new way of life.

Previous reports claim that the upcoming Season 4 installment will be all about war, however, there's a couple of other things fans can expect. Apparently, the fourth season will reel in more action and drama that has ever been seen in the series before, and beyond that, there will be far more twists and turns in the plot.

In terms of new characters on the show, a few of them have already been revealed. Two new characters will be played by Monique Curnen and Cara Buono. Curnen, who is also known for her roles on 'CSI' and 'Hawaii Five-O' will be playing Captain Felicia Moreno. However, there has been no word about the character that Buono will take on in the series.

As it stands, fans are eager for Season 4, because Season 3 ended in a cliffhanger. Basically they're looking for answers about what happened to their favorite characters on 'Person of Interest', and they'll get that chance on September 23.