When she discovers her father's plane crash wasn't an accident, sixteen year old Emma wants to punish those responsible. Even if it means becoming a spy. The mysterious organization known simply as The Authority wants Emma to join The Gems. This team of all-girl spies knows how to handle themselves on dangerous missions...like stopping an evil plan to incinerate the world's food supply.
When Nadia first met him, Robert was an awkward boy with striking green eyes, hardly someone on the FBI's most wanted list. But when Robert reveals his secret, Nadia and the Gems are thrown into a cross-country chase dodging FBI agents, Russian mercenaries, and a Polynesian giant named Kawiki. Who are the Gems? A talented group of teen girl spies who know how to take care of themselves.