Attack On Titan Cliffhanger Sets Up a Three-Way War in Season Four ✖ Attack On Titan'sfourth season hasn't been afraid to shake up the status quo in some insane new ways, as the Survey Corps finds themselves having to deal with not only an external threat that has been with them since the very beginning but an unexpected threat that has been introduced in the latest episodes. With a new band of followers known as the "Jaegerists" following the plan of Eren Jaeger, it's clear that all sides of this new war are playing for keeps and the casualties resulting from the future battles might be insurmountable.