Origin of the Super Soldier Serum: The second season of Agents of S.H.I.E.L.D. Season 7 dove deeper into the history of the MCU. 1931 is an era which has never made it to the films as nothing significant really happened in that year (or at least that’s what people initially thought). But now we know … Continue reading Agents of S.H.I.E.L.D. Reveals The True Origin of the Super Soldier Serum