In the quiet city of Larkspur, archivist Elias Mercer discovers a mysterious cabinet that produces official records of disasters before they happen. Working with structural engineer Daniel Harrow, he secretly uses these documents to prevent tragedies such as a bridge collapse and a tunnel fire, quietly changing the city’s future. Over time Elias realizes his role has shifted from preserving the past to protecting tomorrow, becoming the hidden guardian of a city that will never know how close it came to disaster.