The 100: Blood Must Have Blood (Part 1)

"Blood Must Have Blood (Part 1)" is the fifteenth episode of season two of the dystopic future television series The 100 and the nineteenth episode of the series overall. It was directed by Steven DePaul with a script written by Kira Snyder. It first aired on the CW Network on Wednesday, March 4th, 2015 at 8:00 pm.