Tracking Al Qaeda in Pakistan, sex on a Fijian beach, fighting UFOs in Africa - Sam Kahu's 2009 might sound exciting, but there's no room for error. Earth's alien overlords want no repeat of the last battle. They want Sam and the rest of the Changels eliminated.

But as natural psychics spiritual risks also haunt them. Sam learns he must still deal with his father's legacy of evil, then he discovers his partner, the beautiful but manipulative Tahira, is way ahead of him. Has Tahira fallen to the dark side, and what must he do to help her?

The first part of Changels Nemesis sees the six friends facing adult problems for the first time, aware their allies may falter and a lurking enemy will cruelly punish any slip. Sam, Tahira and the others must find their way through this maze or watch everyone they love die.