7 Days S01E16 - There's Something About Olga

In Minsk (Soviet Belarus), mental patient Galina Komanov, daughter of a killed defected researcher, is prepared by a skeptic KGB Captain's team to play the double of Dr. Olga Vukavitch, in order to infiltrate the program and steal the time travel secret while the real Olga is captured and tortured in a secret room inside the research building.