After a hostile attack on a British vessel, seasoned diplomat Kate Wyler assumes a new role in the UK that puts her skills — and marriage — to the test.

At Winfield, President Rayburn's plans in the Gulf have the staff on edge as tensions between a determined Hal and a strong-willed Kate come to a head.

In London, Hal's actions cause friction as Kate heads to Paris with Dennison to get a handle on the Lenkov situation, which soon takes a shocking turn.