Attack on Titan OVAs Volume 1
1. Ilse's Notebook: Notes from a Scout Regiment Member
During the 49th Exterior Scouting Mission, Section Commander Hange Zoë and Captain Levi encounter an Abnormal Titan which leads them to the site of Ilse Langnar's death. Ilse's notebook reveals that one year ago, she had encountered that same Titan which spoke to her, but it killed her afterward when she attempted to question it. The discovery convinces Commander Erwin Smith to approve resuming attempts at capturing Titans.
2. A Sudden Visitor: The Torturous Curse of Adolescence
An argument breaks out between Jean and Sasha after a Cadet Corps training exercise in Trost, and a drunken Commander Pyxis decides that the fight will be resolved with a cook-off. Jean later receives an omelet from his mother, but he drives her away in embarrassment. However, Jean ends up using the omelet in the cook-off and wins against Sasha's cooked meat. Jean and Sasha make peace, and Jean decides to pay a visit to his mother.
3. Distress
During a 104th Cadet Corps wilderness exercise in which Jean and Eren once again display their rivalry, a gang of thieves steals the cadets' ODM gear and takes Christa as a hostage. The cadets put aside their differences to rescue Christa and their equipment, and together they overpower the thieves. When Armin later reports the situation to the commandant, he wonders if the attack was a part of their training all along.
4. A Choice with No Regrets: Part One
In the underground, Levi and Furlan allow Isabel to join their criminal group and train her in the use of ODM gear. Soon after, they are offered an anonymous job with the reward of money and citizenship on the surface. During this job, they are caught by the Scout Regiment, led by Section Commander Erwin Smith. Recognizing their talents, he offers to overlook their crimes if they join the Scouts, and Levi reluctantly accepts the offer.
5. A Choice with No Regrets: Part Two
After Levi, Furlan, and Isabel have joined the Scout Regiment, the former thugs plan to kill Erwin Smith and steal some documents during the scouting mission, as this was the job they were assigned to. However, during the 23rd Exterior Scouting Mission, Furlan and Isabel are killed by an Abnormal Titan. After Levi kills the Titan, Erwin reveals he knew all along of the true intentions of the trio, and encourages Levi not to regret his decisions. Levi decides to stay in the Scout Regiment and follow Erwin's orders from that day forward.
6. Wall Sina, Goodbye: Part One
On the day before the 57th Exterior Scouting Mission, Hitch gives Annie Leonhart the task of finding a missing person, Carly Stratmann, the daughter of a wealthy merchant in Stohess District. She visits the Stratmann family mansion to ask Carly's father, Elliot G. Stratmann, about the circumstances that may be related to her disappearance. After little success, she researches the Stratmann family records for further information and discovers a connection between Carly and a tavern in Stohess District, the Pit Lidors.
7. Wall Sina, Goodbye: Part Two
After finding Kemper Boltz' body, Annie decides to cover up his murder and locate Carly Stratmann to prevent the case from interfering with her mission. As she takes the carriage back to Elliot G. Stratmann's house, she is kidnapped by two private investigators, Wald and Lou, who were hired by Elliot to find Carly but have now gone rogue and are trying to blackmail him. They reveal their plan to kill her and dispose of her body in the industrial area of Stohess, but on the way Annie breaks free by generating a Female Titan's arm and exploding the carriage.
8. Lost in the cruel world
Before the operation to take back Wall Maria, a Titan guillotine is seen killing Titans as Mikasa Ackermann begins to worry about Eren Jaeger. She recalls the time when she, Eren, and Armin Arlelt reminisced about the old days. Mikasa then begins to worry what Eren will do after the retaking of Wall Maria. She recalls another memory during the Struggle for Trost, when Armin informed her of Eren's death.