I had a Foster's dream last night. I turned on the telly and there it was, before my eyes, a brand new season 5 episode. Of course it didn't have any logic, but the plot was something like this: Mac and Bloo went to a distant planet in a small spaceship. Once they reached it, some sort of weird green creature resembling Sassyfrass jumped out from behind a rock and said "Save our people!" or something similar. Then there was a whole lot about some time-portals or stuff like that. They had to overthrow a space overlord which was one of the Space-Nut Boogies if I remember correctly. But on their way they encountered mind-clouding bunnies. And they fought them for no reason, but then the evil bunnies got a whole army of bunnies, and they created a portal which sucked Mac, Blooregard and the Sassyfrass-likeness to earth. Then an ordinary rabbit jumped on the grass they were lying on and they all screamed like maniacs and ran away. Then the credit secuence came on without any credits and it was bunnies watching television. I wouldn't have liked this as an episode, mainly because it featured only two of the main characters.
Now, anyway, when the episode was over I rushed to my computer and found an episode guide for season five. And it had at least eight episodes. All I can remember is that one episode was simply called "Stupid", and another one, presumably with two shorter eppies, was called: "[Weird formula I can't remember]-vitamin/[A different formula I can't remember either]-vitamin".
Let's just hope that I'm completely wrong.