Just when you thought you couldn't wait for season 6 to come, the trailer is released which doesn't help. The trailer only makes you more eager for the actual season.
The Prequel doesn't show you much that you wouldn't already know. But has the essential characters needed to still make it 24. Jack and of course the Chinnese leader who was responsible for his capture.
Three minutes of the prequel are taken up by footage from season 5 showing his capture, designed no doubt to jock your memory, like we hadn't forgotten!.
It definitely sets you up for the up coming season, and eases your desire for 24 slightly, well at least you can see the Prequel and the trailer over and over.