Season 1: 24 -

: Because the season was initially only ordered for 13 episodes, the mid-season finale (12:00 PM) was designed to feel like a complete series ending in case it wasn't picked up for the full 24 episodes.

: The signature digital beeping clock and split-screen visuals established a level of tension rarely seen on TV at the time. 24 - Season 1

: Unlike later seasons with global nuclear threats, Season 1 is more personal. It follows Jack Bauer, an agent of the Counter Terrorist Unit (CTU) , as he attempts to stop a domestic assassination plot against presidential candidate David Palmer while his wife, Teri, and daughter, Kim, are kidnapped. : Because the season was initially only ordered