Attack on Titan Season 1 Episode 17

As the Recon Corps begins its push toward Shiganshina, they encounter an intelligent Female Titan unlike any they’ve seen before. When Armin hypothesizes that it’s really a human that’s been turned into a Titan, he, Jean, and Reiner attempt to stop it.

Episode Title: Female Titan: The 57th Exterior Scouting Mission, Part 1

Air Date: 2013-08-04