NecroNarco powers activate...
I had a doozy of a dream last night. Epic, multi-season time-travel adventure. Except I forgot the most part. Of course.
There was some sort of powerful empire or force who was appearing in multiple eras and enforced their will. It definitely didn't happen in something resembling our history, cause the Assyrians were riding on Gryphons to fight against the time-empire's zeppelins. The central characters were half a dozen people from modern day, who involuntarily time-traveled to the past and witnessed that one power vanquishing the some ancient kingdom, name beginning with A, then the Assyrian and Babylonian empires and eradicating their capitals. They were advancing further and further forward in time. (That first kingdom happened to fight against the Israelites when the time-empire crushed them.)
There was also a almost-modern-day plotline, which somehow involved a gigantic fish restaurant in Japan, which was owned by a megacorp, and I think one of the people trapped in the past was the CEO's son. They knew time-travel was a thing and even had the capability, but it was difficult and expensive to use, even for a megacorp.
Eventually things climaxed in a sort-of alternate Rome (the aesthetics were more like fantasy Egypt). The time-empire was occupying the city with golden spheres, who fired beams eradicating people from time. The characters were trying to find a solution to beat them, scheming with the pretend-collaborating Emperor. Most of Rome was depopulated when things came to a head, but somehow some device or thing the empire wanted was sacrificed or destroyed in the city, and then the time-empire retreated, with the zeppelins and spheres flying towards the horizon over the sea.
The cast of main characters changed over these events, so if this were a TV series, it would be multi-season or something.