Yoo Si Jin (Song Joong-ki) is the captain of a South Korean Special Forces unit. He catches a motorcycle thief, Kim Gi Beom (Kim Min Seok), with Sergeant Major Seo Dae Young (Jin Goo). The thief is injured during his capture and is sent to the hospital. Dae-young realizes his cellphone was stolen by the thief and goes to the hospital along with Si Jin to retrieve his cellphone.