London, 1942. A single sheet of paper nearly sent Convoy Twelve to the bottom of the Atlantic. The men responsible didn't disappear, they adapted.
When Evelyn Shaw, an Admiralty clerk with a notebook full of names and timings, returns to Convoy Control, she finds the office changed. The language is softer, the doors are tighter, and the war has learned a new trick: bury the truth inside "proper channels." A fresh set of authorisations begins circulating through London's ministries, stamped clean, signed correctly, and deadly in their timing.
Commander Maddox and Inspector Finch are ordered to stand down. Annex Security is back in the building. And someone is using the courts not to protect records, but to quietly retrieve them.
As another convoy prepares to sail under a schedule no one seems allowed to question, Evelyn is forced into a choice she never wanted: remain a clerk and watch the machinery close, or step into the open and become the kind of witness the system is built to break.