Rent Roswell: Series 2 (2000)

While the first season of Roswell introduced us to the other-worldly teenagers living in the tiny but notorious town of Roswell, New Mexico, the second season finds them with their enemy amongst them, in the midst of a war for the survival of their entire race. As well as the threat from the mysterious Skins, sent from the aliens' home system to try and eliminate them, there are difficult decisions to be made - who will be left on Earth at the end of the season?