A Russian submarine receives new orders and breaks away from its fleet. Henry is preparing to leave for Russia where Foreign Minister Gorev has invited him to lecture. Allison posts a picture of Harrison and Stevie together online and Stevie gets upset. Elizabeth gets called to the Situation Room. The missing submarine has new stealth technology that allows it to evade all forms of detection. President Dalton orders the military to move closer. Henry is in the middle of a lecture when he is interuppted by Russian President Ostrov who insists that Henry go hunting for him. It's clear that President Ostrov is using Henry as propaganda as a way to influence Elizabeth. He doesn't want NATO to move troops to Latvia. The Russian submarine launches a torpedo at a US ship after it send some warning bombs to announce its presence. President Dalton's military advisors want permission to engage and destroy the submarine, but Elizabeth cautions against force. She suspects something is wrong with the submarine because Ostrov isn't bragging about it. They contact the submarine via morse code so Moscow can't hear the conversation. Their response? Please help. What went wrong with the Russian submarine? Can Elizabeth resolve the situation peacefully? Watch Madam Secretary Season 1 Episode 20 online via TV Fanatic to find out.