Video covering the first phase of the Gothic War (535–554).
Be sure to read the accompanying blog post:

I will be working on part 3 shortly.

Sources and further readings for those interested
Secondary:
Barker, John W: “Justinian and the Later Roman Empire” (1966)
Moorhead, John: “Justinian” (1994)
Haldon, John: “The Byzantine Wars” (2008) Mass, Michael (editor) “The Cambridge Companion to the Age of Justinian” (2005) Treadgold, Warren: “Byzantium and Its Army: 284-1081” (1995)

Primary:
Prokopios: “The Secret History” Trans. Kaldellis, Anthony/Haury, J. (2010) Prokopios: “The Wars of Justinian” Trans. Dewing, H.B.; Ed. Kaldellis, Anthony (2014)
Cassiodorus: “Variae” Trans. Barnish, SJB (1992)

Music:
“Immuration”

“Intrepid” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0