Plot summary
Marie Ostrev dies from the missile explosion. The attacker is identified as Zelinsky from Ukraine. Russia considers the attack a violation of the agreement. The Americans locate and extract Zelinsky, hoping that Ukraine will turn Zelinsky over to Russia so that the peace agreement can stay in place. Henry, Elizabeth, and Dalton are notified of Dmitri's death. Elizabeth learns that debris from a North Korea satellite launch has damaged the International Space Station and that three of the astronauts on board are trapped. She convinces China to provide modular Extravehicular Mobility Units to Russia to send to the space station.
Credits
Adapted from Wikipedia contributors, Madam Secretary season 2. HTML formatting and reference markers removed.