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.

After a sit-down with a Russian ambassador leads to new intel and mixed messages, Kate takes a trip to the Oval Office and reconnects with an old friend.

After rushing back to London, Kate shares her suspicions about the bombing. The search is on for Lenkov — and Roylin. Eidra delivers devastating news.