O2 plot
"At the start of World War II, one man's courage would save a nation."
August 23, 1939. The Soviet Union and Hitler's Germany, bitter enemies at the moment, shock the world by signing a non-aggression pact. However, Europe fears an imminent war. After an Estonian intelligence officer is murdered and a Soviet source claims they have been infiltrated by a mole, Estonian spy Feliks Kangur is tasked with finding the traitor. As political and military events begin to unfold on a global scale, Feliks discovers that the Red Army has launched a covert operation to annex Estonia.