"With the backing of Russia’s authoritarian president, no threat is more deadly than that of Pavel Voronin and his mercenary Raven Syndicate. Twice they have almost succeeded in bringing the United States to its knees, only to be stopped at the last moment by Flynn and his team of highly trained operatives. But Flynn knows it’s only a matter of time before one of Voronin’s plans to cripple the US bears lethal fruit. And so, taking the Russian oligarch permanently off the board is now his number one priority."