As the graduation ceremony at Katagiri High School comes to an end, Kyouko Hori, her boyfriend Izumi Miyamura, and their friends begin to look back on their time as students. The moments they shared together may be fleeting, but each one is a colorful piece of their precious memories.

Shirobako Specials is an OVA adaptation of the first episodes of the two fictional television anime produced by Musashino Animation in the Shirobako television anime. Ekusodasu!: Shutsu Tokyo Akane, Aya, and Alpine are the three members of the struggling idol group Tracy, which has yet to make a name for themselves. After their performance at a supermarket attracts a dismal audience, the trio's leader Akane decides to turn their fortune around by confronting their disinterested manager Taguchi. But the girls are in for a surprise when they stumble across Taguchi's corpse in a storage room, and become the prime suspects in his murder—all the while rising to the widespread fame they so desperately wanted. Daisan Hikou Shoujotai: FALLING ANGEL The 307 Aerial Squad, also known as "Hell Alice," is part of a global military resistance against the enigmatic Builders, who have covered a third of Earth's surface with mysterious structures known as Pillars. With all aircraft built after the 1970s disabled by the Pillars, Hell Alice must pilot their outdated equipment against the advanced technology stolen by the Builders. Among their ranks is the talented, school-aged Japanese girl Aria Hitotose, the so-called "Ice Doll" who never hesitates in even the most dire of situations. When an operation to rescue survivors from a destroyed base goes awry, it is up to Aria and her trusty allies to save the day.

The film's story is set four years after the events of the original Shirobako anime. Aoi Miyamori keeps busy dealing with the ordinary troubles in her daily work at Musashino Animation. After a morning meeting, Watanabe talks to Aoi and puts her in charge of a new theatrical anime project for the studio. The project has unexpected problems, and Aoi is unsure if the company can proceed with a theatrical anime with its current state of affairs. While dealing with that anxiety, Aoi meets a new colleague named Kaede Miyai (voiced by Ayane Sakura). She and the MusAni team work together to complete the project.

On a sunny day, Mihoshi Kuramitsu decides to take a peaceful nap while everyone else does chores. Sick of Mihoshi's laziness, Aeka Jurai Masaki questions her capability as a Galaxy Police Officer. Her pride wounded, Mihoshi decides to prove that she is a skilled first class detective by telling the story of how she and her partner, Kiyone Makibi, put a stop to a series of thefts involving Ultra Energy Matter. To make it more fun, Mihoshi inserts Tenchi Masaki and the others into her story. However, her fantastical tale may just demonstrate her lack of a grip on reality rather than showcase her accomplishment as a talented officer.