Attack on Titan: Distress (2014)

The 104th Training Corps' most recent mission is a trek on horseback into the forest. Although a test of their ability to stay alert even in non-threatening situations, the task is boring and can lead to in-fighting. This is especially true for one of the groups, lead by Marco Bott. Some want to stay true to the mission they have been tasked with, and the rest would rather slack off, occupying themselves with more exciting activities. But when trouble strikes, they are completely unprepared.