Casshern Sins - Complete Series

Episodes 1-24 of the anime series set in a post-apocalyptic future world. After robots subjugate humanity when they become self-aware, the remaining humans place their salvation in the hands of a mysterious girl named 'Luna'. But her assassination at the hands of the robot leader's cyborg, Casshern, triggers 'the ruin', a cataclysmic event which sets into motion the end of the world. With the Earth's atmosphere now full of poisonous gases which affect both humans and robots alike, Casshern, the only one immune to 'the ruin', awakes to find himself with no memory of his past or what he has done.