" The Children of Gabriel " is the third episode of the sixth season of the post-apocalyptic sci-fi series The 100 . Directed by Dean White and written by Drew Lindo, it originally aired on May 14, 2019, on The CW. The episode follows Clarke Griffin's attempts to secure a home for her people in the settlement of Sanctum while a new hostile faction, known as the Children of Gabriel, emerges in the surrounding forest. Key Plot Developments