The First Responders 1x7 CODE BLUE Season 1 Season 1 9 Episodes Ho-gae identifies a new suspect, while the case becomes evermore ensnared in mystery. 1x1 - Code Zero 1x2 - Code Two 1x3 - CODE YELLOW 1x4 - Code V30. 1x5 - CODE BLACK 1x6 - CODE RED 1x7 - CODE BLUE 1x8 - CODE CLEAR 1x9 - CODE PINK