Siddharth and Sowmya, Fourteen-year-old twins, are amateur SETI volunteers. They are unable to understand a signal their observatory receives at a particular time every day. NASA too is perplexed at the focus of the k=unknown satellite moving in synchronous orbit with the earth. However, Gregory Perkins and Daniel Hawthorne have long been waiting for this. They must thwart the pentagon's plans to kidnap the twins and ensure that the message being beamed from somewhere outside earth is conveyed to the world through the 'chosen two'. A racy science fiction for teenagers.