Midnight Oil

Item 19 was invention created by Howard Stark which he classified as one of his most dangerous. A chemical weapon in gas form, it was sought after by Leviathan.

History
Item 17 was stolen from Howard's vault by former Leviathan agent Leet Brannis. Brannis stored Item 17 along with Stark's other invention on board the The Heartbreak. After Agent Carter located the location of Howard's stolen inventions, the SSR took possession of the Stark's technology and transferred it to its labs for study.

After hypnotizing Chief Dooley, Ivchenko was able to gain access to the SSR's laboratory so that he could retrieve Item 17. As Ivchenko discovered another of Stark's dangerous inventions, a a self-heating vest, Chief Dooley located the box containing the item. To provide a distraction for his escape, Ivchenko manipulated Dooley to put on the vest and go back to his office. Outside the SSR building, Ivchenko was picked-up by [[Dottie Underwood] and informed her the time had come to test the effectiveness of the weapon. Dotti released Item 13's gas content in a movie theater where the patrons suddenly started to attacked each other until there were none alive.