Person of Interest: The Complete Third Season (Warner, Blu-ray+DVD Combo) adds another partner to the team (Sarah Shahi as a coolly efficient former CIA assassin), turns renegade activist and maverick genius Root (Amy Acker) into a wary ally, and most dramatically kills off a trusted and beloved ally, a loss that sends the reliable John Reese (Jim Caviezel) into a dramatic tailspin. This season expands the surveillance conspiracy aspect of the series—the premise depends on a supercomputer hooked up to every camera and communications device on the grid—by introducing a second system controlled by an shadowy international organization and sold to the American government with an elaborate terrorist plot. As the show gets more complex and the cast gets bigger, Detective Fusco (Kevin Chapman), the one-time corrupt cop who saved his soul be helping out the team and eventually became a reliable and trusted member of the secret squad, wound up getting forgotten, swept to the fringes of most episodes, but he takes the lead in coaxing Reese back to the team in one of his finest hours.
It’s an increasingly complex series, which keeps its fans riveted to the show, while still delivering stand-alone mystery of the week episodes that sends the team out to save an innocent (and sometimes a not-so-innocent) victim from harm. It remains action packed and full of science fiction-level technology but the characters are still the most interesting dimension of the show and the loyalty they show one another defines the series and keeps me connected to the elaborate mythology. By the end of the season, it goes in directions most viewers would not predict, setting itself up for big changes in the fourth season which begins in September.
23 episodes on Blu-ray and DVD editions, along with three featurettes, commentary on the season finale by actor Michael Emerson, and the 2013 Comic Con panel presentation. The Blu-ray release also features bonus DVD and digital copies.
Five select episodes of the show – including the three final episodes of the season, can be streamed at CBS.com.