Jack travels to Vienna to track down the source of his original intelligence on Sokol. Greer advises Alena on a key NATO deal. Petr Kovac, Alena’s father, hosts a hunt in the Czech woods.

In Budapest, Jack and Mike plan a sting on a slippery arms dealer to ascertain the whereabouts of the Sokol nuclear device, as Greer discovers some intriguing and potentially incriminating information on Petr Kovac.

In Moscow, Jack teams with Luka to expose the high-ranking cabal members within the government who are now orchestrating the secret Sokol plan.

Jack, Greer, Wright, Alena and Luka all work in concert to prevent the start of a third world war.