The thrilling real-time spy series 24 centered around Jack Bauer and the Counter Terrorist Unit revolutionized the genre. The originality of having each episode represent an hour and each season representing a single day helped to differentiate itself from other action shows. Beginning in 2001, 24 ran for nine seasons, one spin-off and a TV movie that left fans wondering which was the best season of 24.
Source：https://www.cbr.com/24-every-season-from-worst-to-best-ranked-according-to-rotten-tomatoes/
