This season gets 24 back on track after the horrendous sixth season. Season 7 re-introduces realism (as much as 24 can!) and 3-dimensional characters into Jack Bauer's crazy world.
The introduction of new characters like Renee and President Taylor (The first Female President) bring fresh character development and contrast to our action hero Jack. This season also successfully brings back some fan favorite characters like Tony, Chloe, Bill, Aaron and Kim in surprising and exciting ways.
You can't forget 24's instant classic villains (one being played by Jon Voight) who keep the suspense and drama at breaking point.
This season isn't 100% perfect though as it has 24's usual cliches (e.g. The Government Mole, Jack never uses the toilet, backup is always 10minutes away… etc) but overall it is a lot of fun and features a big character changing twist towards the end of the season.