Five years have passed since the fall of Wall Maria and Eren faces off against the Colossal Titan after it appears out of nowhere once again, and knocks a strategic hole in the gate of Wall Rose. As Titans swarm the city, the newly graduated Cadets are called in to fight a brutal battle that won't be without casualties.

Everyone is a suspect in the investigation to find out who killed the two test-subject Titans. Meanwhile, the cadets pick which military branch they'll be joining, but after the harrowing events in the Trost attack, many are uncertain which branch to choose.

Though glad the war is over, both the Eldian Warriors and Marley brass realize that neither have a future unless they finish the job of retaking the Founding Titan.

The Beast Titan joins the fray, but General Magath is determined to take him down. Meanwhile, with the city in flames, Colt and Gabi rush to rescue Falco who's held captive by the Yeagerists.