It explores the professional growth of the interns following the events of the first season, specifically dealing with the trauma and weight of the life-or-death decisions they make daily.
Look out for major stars including Yamashita Tomohisa (Aizawa), Aragaki Yui (Shiraishi), and Toda Erika (Hiyama).
You should watch this after Season 1 (11 episodes) and before Season 2.
The Season 1 Special serves as a bridge between Season 1 (2008) and Season 2 (2010). It continues the story of four young flight doctor interns—Aizawa, Shiraishi, Hiyama, and Fujikawa—and their nurse colleague, Saejima.