: Without the protection of the wall, Titans swarm the city. The cadets are immediately deployed to hold the line while civilians evacuate.
: While most Titans appear to be mindless "Abnormals" or "Pure Titans," the Colossal Titan's tactical strikes suggest a higher level of intelligence previously unobserved by humanity. Critical Reception Watch Shingeki no Kyojin - 05
: Flashbacks in the episode provide critical exposition on Titans: they do not need food to survive, lack digestive tracts, and possess incredible regenerative abilities unless the nape of their neck is destroyed. : Without the protection of the wall, Titans swarm the city