1, refers to the route connecting Seoul to Pyongyang, the soldiers' long and brutal road of sacrifice and survival.

When Soo-yeon's family falls on hard times, he joins the army in order to earn money to pay for her tuition.

While Jang-woo is on his tour of duty, Soo-yeon studies hard and spends her time helping injured soldiers as a doctor.

Fate brings another man into her life: Shin Tae-ho, a handsome and generous officer who graduated from the army academy at the top of his class.

[6][7] Special Bonus: This was So Ji-sub and Kim Ha-neul's first acting collaboration after they were paired in a commercial shoot for fashion brand Storm in 1997.