第 9 集: 左臂的痕跡：調查兵團與艾倫在托洛斯特區的對峙
2013年6月2日 播出
The Left Arm's Trace is the ninth episode of the Attack on Titan anime. This episode introduces the several members of Survey Corps in action against the Titans while Eren and others face the soldiers in an attempt to prove that they mean no harm to humanity. (Source: Wikia)