The marketing of this set calls it a complete series, and it is almost the complete series. The made-for-TV movie called "The Final Break" which is set between a time jump that occurs in the original series finale is missing from the set. So, this set is really just a repackaging of seasons 1-4 of the show and the limited event series, which is essentially the fifth season. The Final Break movie is a bit out of place given that the show did get revived for the fifth season, but that is available separately on Blu-Ray for those who want it.
Prison Break was a show that aired from 2005-2009 on FOX (for its original run) and then was revived in 2017 for a nine-episode run. It was insanely popular during the first season, and its popularity started to wane as the seasons went on. The series opens with a man named Michael Schofield, played by Wentworth Miller, committing armed robbery and waiting for the police to arrive and arrest him. The show then fast forwards through the trial to his conviction and he is then sentenced to Fox River State Penitentiary, where we learn that his brother Lincoln Burrows, Played by Dominic Purcell, is on death row for the murder of the Vice President of the United States' brother. Michael is convinced Lincoln is innocent, and also happens to be a structural engineer who has tattooed the plans for the prison all over his body. He then hatches an elaborate plan, that takes place over the course of the season, to escape with his brother. It is only a slight spoiler to say that the escape happens, and the subsequent seasons involve the escapees (there are more than two) trying to evade capture, and Michael trying to uncover the conspiracy that led to his brother being framed for murder.
As I noted, this just has the individual seasons packaged in one set. So if you already bought the blu-rays, you are not getting anything more from this set aside from the collectible outer box. Thus, the A/V quality of the seasons is the same (and very good) and all of the extras (which are extensive, especially in the early seasons) carry over. There are commentary tracks on several episodes throughout the series, making of featurettes, deleted scenes, and the like.
The series is very good overall but does have its ups and downs. Season 3 was probably the worst season of the bunch, and I personally thought that the limited event series was unnecessary. Miller and Purcell did a great job as the series leads, and the show had a strong supporting cast throughout its run that included Amaury Nolasco, Robert Knepper, Robin Tunney, Peter Stormare, Wade Williams, Sarah Wayne Callies, Paul Adelstein, William Fichtner, Jodi Lyn O'Keefe, and Michael Rappaport. While the show did take some logical leaps, it was mostly well-written and always well-acted. So, if you like crime dramas that have longer and more involved serial arcs as opposed to procedurals that wrap up a case at the end of each episode, this is a good one. It is a good show to binge because there are a lot of twists and turns and callbacks to things that occurred in prior episodes. It is definitely worth watching.
