In this episode, we delve into the Byzantine Empire's decline and internal strife, setting the stage for Heraclius' rise to power amidst the fall of Constantinople. We examine the Sasanians' capture of Antioch, Jerusalem, and Egypt, highlighting Heraclius' diplomatic maneuvers and efforts to reclaim lost territories. The narrative explores Heraclius' military and financial reforms, his rallying of religious support for a counter-offensive, and the strategic alliances that shifted momentum in his favor. We conclude with Heraclius' divide-and-conquer strategy as he prepares for a decisive comeback against the Sasanian forces.