Complete story — includes the ending
As the recruits are investigated over Sawney and Beane's deaths, Annie joins the Military Police Regiment. The 104th class of cadets are greeted by Erwin at the Decision Ceremony, where he informs them that the goal of the Scout Regiment's expedition next month is to reclaim Wall Maria so they can enter the Shiganshina District and uncover the secret in the basement of Eren's home. He tells them of the Scout Regiment's high mortality rate, since they are the military branch responsible for outside exploration and Titan combat. After hearing of this, most recruits leave to join the other branches. Jean, suffering from guilt and inner turmoil, joins the Scouts in honor of Marco; Mikasa, Armin, Reiner, Bertholdt, Conny, Sasha, Christa and Ymir also join. Thus, Eren is reunited with his friends after a while. The Scout Regiment embarks on their 57th Expedition beyond the walls.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Attack on Titan season 1. Reference markers and HTML formatting removed. · Content license