It's difficult to talk about this series. The show is a complex web of puzzles that plays out over all four seasons and two made for tv movies. Without knowing the stories and truths we learn later in the series, the first episode seems quite confusing, but makes us want to learn more.
A man and a woman are following a man who is actively helping other people. We learn that Jarod, the runaway, is fleeing a brain bin called The Centre. The Centre collects highly intelligent children and sells their useful talents to the highest bidder. Jarod's genius allows him to be a "pretender" one who doesn't act a part, but becomes the part. Because of The Centre, his gift has destroyed many innocent lives, all the while he thought he was saving them. Now he helps the innocent and the powerless while trying to stay one step ahead of The Centre's minions.
Complex? Yes. But following Jarod's journey of redemption was worth tuning in each week. Over four seasons we see how the lies are sorted from the truth for Jarod and the people following him. While the ratings were good, the show ended so NBC could replace it with the now defunct XFL ("wrestling football" as Michael T. Weiss once called it).
Two made for tv movies were developed with plans for a third. As of yet, there has been no word on the final movie and properly ending the series. Until then, all we can do is relive it on DVD.