November 7, 1940. Spectators from across Washington State gathered to watch the Tacoma Narrows Bridge's crumbling collapse. This is the feature film story of the famed Galloping Gertie: those who witnessed her build and ultimate collapse, those who have explored her wreckage, lured by adventure and a giant octopus; and those who have studied her history. "700 Feet Down" is a deep dive exploration into how history influences the present, and the lessons we can learn along the way.