After giving first aid to a thief they just tackled, Seo Dae-Young and Yoo Shi Jin discover that Seo Dae-Young's phone has been stolen. Their search for his mobile leads them to Haesung Hospital where they bump into Doctor Kang Mo Yun, which is distrustful to their intentions.

Yoo Si Jin returns after being deployed to Afghanistan and meet up with Kang Mo-Yeon during his two free weeks before being deployed to Urk for eight months. Kang Mo-Yeon tells him that her vision of life is completely different than that of Yoo Si Jin and therefore she can't be together with him.

The medical team settled down and is ready to take blood samples from soldiers, when a truck crashes in a mountain pass nearby their base. However this crash is more complicated than they initially thought.