After the emotional family affair that took place last episode, Elizabeth (Téa Leoni) is back to work and ready to take on President Dalton's (Keith Carradine) new assignment for her in the CBS series "Madam Secretary."

In "Left of the Boom," CarterMatt reports that the Secretary of State will tackle two sensitive cases. The first one has something to do with the alarming uranium heist in Eastern Europe. The United States has to move fast to track down the culprit before the trail goes cold. Elizabeth will have to fly to Europe to determine why the thieves are after the element. Uranium is used to create bombs. Although not as popular as the atomic bombs used in the past wars, explosives created with the said element are as destructive and scary. Will the United States be tracking down terrorists?

While the exact place where the theft occurred has not been mentioned, a recent report of the International Business Times posits it is in Ukraine. There are allegations that the country has a huge deposit of uranium. The last involvement Elizabeth had with the Ukrainians was during the Russian crisis, wherein the United States almost announced war against Russia for the attack on the Air Force One. It turned out it was the European country that masterminded the assault to discredit Russia in the Americans' eyes.

During the peace talks between the two powerful countries, Ukraine's representative did not attend. When an explosive was launched on the cars of the leaders, killing the Russian Premiere, Elizabeth suspects that the Ukrainians were behind the attack. If the country indeed is the place that she will be travelling to next episode, how will Elizabeth react? The business with the President's plane has still not been cleared. Will it be fair if she just write off the heist and let the Ukrainians find the bad guys on their own?

Meanwhile, trouble is also brewing in the biggest ally of the United States in the Middle East — Saudi Arabia. Two misguided teenagers will decide that it is cool to be part of a terrorist group. When they suddenly have second doubts in joining, they will pose a threat in an important arms deal between the two countries. Elizabeth must make sure that they return to their parents and salvage the pact before it is too late.

"Madam Secretary" season 2 airs Sundays at 8 p.m. EST on CBS.