A hospital ping pong tournament brings out each department's competitive streak. Ik-sun and Jun-wan make plans to meet for a proper chat.

The five friends leave for vacation together, but not all of them make it to the destination. Jae-hak and his wife navigate one surprise after another.

One of the hospital's doctors is rushed into the emergency room. A patient with an unanticipated condition poses a challenge for Song-hwa and her team.

A series of tough choices and sudden crises keeps life at the hospital as busy as ever. Through it all, the five friends continue to follow their hearts.