The mother, a former spy, becomes a spy again to protect her family when her son must join the other side.
EPISODE 1
SPY
Sun Woo, a field agent with the National Intelligence Service, has an accident while on a mission in China.
EPISODE 2
Ki Chul, Hye Rim's former boss, shows up at her house and threatens to reveal her real identity to the world.
EPISODE 3
Ki Chul keeps pushing Hye Rim to bring Sun Woo to him, but Hye Rim decides to turn herself in instead.
EPISODE 4
Sun Woo suggests to Joong Hyuk a double agent operation using Soo Yeon to find the North Korean spies.
EPISODE 5
Sun Woo is shocked by Soo Yeon's death but tries to save Soo Yeon's family as he had promised her.
EPISODE 6
Hye Rim suspects that Ki Chul also planted a wiretap at Yun Jin's apartment and sneaks into her apartment.
Kim Jae-joong
Jung Won-joong
Bae Jong-ok
Jo Dal-hwan
Yu Oh-seong
Soo-bin Chae
Ko Sung-hee
Ryu Hye-young
Park Hyun-suk
Han Sang-woon
Lee Gang