Case File, marketed by BBC America as Yaz's Case File, was a series of webcasts released as a tie-in with series 11 of Doctor Who in 2018. It was scripted by Jacqueline Rayner. As the BBC America name implied, they were a mini-recap of the episodes but from Yasmin Khan's perspective. As such, they contained little new information that wasn't already obvious to the viewer of the main Doctor Who episode. The series was similar in format to Monster Files, seen during the late RTD/early Moffat era. It also shared some commonality with Sarah Jane's Alien Files that was released with The Sarah Jane Adventures for a time — although that series had more content that was not seen in the accompanying episode. The series stood in contrast to Tardisodes and prequels, two types of short-form programming that offered wholly new narrative rather than explorations of concepts and creatures already featured in televised stories.
Episode 1
Brief overview of the Stenza in general and Tzim-Sha's conflict with the Thirteenth Doctor.
Episode 2
Brief overview of the Remnants found on the planet Desolation, and how the Doctor defeated them during one encounter.
Episode 3
Brief overview of Krasko and Rosa Parks starting the Montgomery Bus Boycotts.
Episode 4
Brief overview of the Mutant Spiders and the events at Robertson Luxury Hotels.
Episode 5
Brief overview of the Pting and the events on Tsuranga.
Episode 6
Brief overview of the Thijarians and the events in Punjab.
Episode 7
Brief overview of the Kerb!am Men and the events in Kerb!am.
Episode 8
Brief overview of the Morax and the events in Bilehurst Cragg.
Episode 9
Brief overview of the Anti-zone Team TARDIS encountered and the creatures inhabiting it, specifically Ribbons and the flesh moths.
Episode 10
Brief overview of the Ux's background and history, as well as some details of the events on Ranskoor Av Kolos in 5425.
Episode 11
Brief overview of the Dalek's history, the Order of the Custodians, and the events of New Year's Day 2019.
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