It was the second episode of Human Target that hooked me, wherein a good portion of the show took place in a commercial airplane flying upside down. If that doesn't sound awesome to you, you may be reading the wrong blog.
The first season was a five-star piece of brilliance. Every episode was a first-rate mini action-movie. In the second season, they messed with the formula, and the show dropped to a miserable four stars.
Majorly disappointed it's been cancelled, and I would recommend the entire 26-episode series to anyone looking to kill a summer dry spell.