The Bitter End (Season Finale)
I don't know about "bitter," but it worked. The prequel as a whole did what it was meant to, which was to add layers to Batiatus and Lucretia and restate / revisit some of the thematic elements of Spartacus: Blood and Sand. Specifically, it was about establishing just how corrupt Roman society is as motivator for Spartacus' rebellion. (Beyond the Dead Wife Syndrome.) This particular episode was a bit muted compared to the finale of Blood and Sand. Of course, when so much of everything rotated around poor dead Melitta... I mean, Gannicus is walking out the door and still takes time for One Last Anguished Glance.
I was suprised that they got Tullius out of the way as soon as they did. I presume it was to leave space for Solonius' turn against Batiatus. That might have been set up a bit more effectively if Solonius hadn't been so absent for the past couple of episodes. But the ending to Crixus and Ashur's tale worked for both characters. There was poor poor Diona (further maligned by the fact that I seem to have been spelling her name wrong the whole time) and her fate deepening the reasons why Naevia would be skittish around Crixus and then willing to risk so much for him.
And in the end, it was about John Hannah and Lucy Lawless powering the whole show. A riveting watch, start to bloody finish.