Ottoman Sultan Mehmed II wages an epic campaign to take the Byzantine capital of Constantinople and shapes the course of history for centuries.

1. The New Sultan 45m After claiming the Ottoman throne, Mehmed II sends an unmistakable signal to Byzantine emperor Constantine XI. Enter Genoese mercenaries.

2. Through the Walls 45m Mehmed launches an ambitious siege to break through the walls of Constantinople, but Giustiniani's mercenaries manage to forestall the Janissaries.

3. Into the Golden Horn 45m Mehmed's men dig underground tunnels in an attempt to shatter city walls. The tides turn against the Ottomans when a naval blockade founders.

4. Loose Lips Sink Ships 47m Mehmed moves his ships overland to the Golden Horn in a daring, visionary feat. In the shadow of betrayal, Giustiniani attacks the Ottoman fleet.

5. Ancient Prophecies 45m Amid a spiral of brutality and low morale, Mehmed makes Giustiniani an enticing offer. The grand vizier urges Mehmed to seek a truce with his rival.