Introducing Mustard: Unsealed (Patreon)

Happy New Year, everyone.

As we head into 2026, I wanted to share some updates. We’re busy getting ready to release two new videos next week.

Next YouTube Release:

I can’t reveal the topic just yet, but next week’s release focuses on a radical Soviet machine that attempted to outrun the laws of physics. It is a story about a submarine whose mere existence forced the West to rethink every strategy they had for the deep ocean. In 2025, we enjoyed venturing into different styles, like our investigation into the MV Derbyshire tragedy. We felt it was time to return to classic Mustard territory with a high-stakes, 'impossible' engineering mystery from the heart of the Cold War.

The Struggle for the Perfect Edit

To keep our videos feeling cinematic and tight, we have to be incredibly selective. If we can't find the exact archival footage or render the perfect asset to anchor a technical detail, we choose to leave it out rather than break the flow of the story. This commitment to pacing is what makes a Mustard video work, but it also means mountains of incredible research never see the light of day.

The consequence is that the vast majority of our research ends up on the cutting room floor. Translated memoirs, declassified records, and the deep engineering "what-ifs" often never see the light of day because they don’t fit the 15-minute "narrative arc" expected on YouTube.

We talked about this struggle a few months ago, when we posted about an idea for an audio-only series called Mustard: Unseen. We wanted a way to tell these deeper stories without the crushing overhead of visual production. Your feedback was loud and clear: Mustard is a visual experience. You want to see the machines, the blueprints, and the world they lived in. We took that to heart.

Introducing: "Mustard: Unsealed"

Next week, alongside our next major YouTube release, we are launching a new companion series exclusive to Nebula: Mustard: Unsealed.

If the main channel is about the history, Unsealed is about the Doctrine. It’s "Dark Mode" Mustard. Slower, more analytical, and more meditative. It’s for those who want to look at the primary sources and the engineering philosophy that the main videos have to skip.

While the topic of next week’s video remains a secret, I can tell you that the first episode of Unsealed takes us into the heart of the Cold War, revealing a terrifying, forgotten naval doctrine that envisioned a vessel not as a boat, but as an "underwater fighter jet.”

We originally planned to keep the visuals for this series "economical." But we couldn't help ourselves. We blew the budget on the pilot episode to make sure it feels as high-fidelity as a main channel release, just with a moodier, more technical atmosphere. In future companion episodes, we’ll get the balance just right, and push for longer runtimes.

The first episode of Unsealed and our next YouTube video both drop next week.

Thank you for pushing us to find a better way to tell these stories.

Ferdinand