Well, I think the episode Friday was intended to be some sort of bad comedy...
Nolan and the mayor find a giant underground weapons cache, but she goes all psycho on her ex-boyfriend who they found there and ends up blowing it all up, thus removing all the weapons they need.
Meanwhile Irisa has a life threatening situation occur and the other deputy (who is mad at Irisa because she killed Tommy - never mind that Irisa was being controlled by the Ark Brain) just walks away and leaves her there dying.
And while this is all going on, Stahma (Jamie Murray) seduces and tries to murder the older Omec, only to discover they are immune to her poisons. So...she breaks down and tells the Omec how the Votanis collective is blackmailing her and her husband. His response? Let's have more sex! To which she happily agrees! To heck with her son being at risk of death because she failed to kill him, time for more sex (now where is the broom closet....)!
Oh, and Datak and Stahma blew up the arch. So no more music and they even changed the opening credits.