Tamara Gillon

Cass is sent away on holiday with her cousins where she meets a boy on a secret mission. All the while, in the back of her mind, is her sister back home in a hospital bed.

When the president of Russia suddenly dies, a man whose politics are virtually unknown succeeds him. The change in political leaders sparks paranoia among American CIA officials, so CIA director Bill Cabot recruits a young analyst to supply insight and advice on the situation. Then the unthinkable happens: a nuclear bomb explodes in a U.S. city, and America is quick to blame the Russians.