Subaru and Teana are informed that they have failed their promotion exam, but are given another chance by Nanoha and Reinforce to take the exam again in a week. In the meantime, they are told about the Sixth Mobile Division, which is a special division about to be formed and led by Nanoha, Fate, and Hayate. Erio and Caro make an appearance and meet for the first time.

This episode marks the first mission of the new teams, as they battle several droids to recover a Lost Logia. Subaru and the others get to test out their new and improved devices. Part of Caro's past is revealed, as well as her true ability. Someone is monitoring them from a lab, gathering data mostly on Fate and Erio, who have a connection with "Project F".

Following an averted friendly-fire incident at the Hotel Augusta, Teana throws herself into intensive training. Subaru joins her, and they devise a dangerous strategy for their next combat exercise with Nanoha. Has Nanoha taught them well enough to avoid hurting themselves at all costs?