Questions about TF: Energon plot

I just watched TF: Energon and there are a few questions I have about the story. I'd appreciate it if anyone would clear them up for me. Thanks!
1) I thought there was a part in the third story arc where Cybertron went through a warp gate or something, and Rodimus went too, and then said he was going to go to Optimus, but then in the next episode Cybertron went through it again? Does anyone know what I'm talking about and could they please explain it?
2) In the last episode Kicker is told that Unicron should not be destroyed because he has both good and evil in him. We also learn that he is a part of everyone. But then Galvatron's death removes the Unicron threat. How? Isn't Unicron still part of everyone and couldn't he just possess someone else?
3) Misha disappears for part of the third story arc - where did she go and why? I think they mentioned it afterwards but I don't remember.
4) When Shockblast escapes from prison we see that there are lots of imprisoned Decepticons. How come for the rest of the series we don't see tons of them, only Megatron's tiny band of Decepticons? At least we see more Autobots on Cybertron during the fourth story arc.
Thanks in advance!
1) I thought there was a part in the third story arc where Cybertron went through a warp gate or something, and Rodimus went too, and then said he was going to go to Optimus, but then in the next episode Cybertron went through it again? Does anyone know what I'm talking about and could they please explain it?
2) In the last episode Kicker is told that Unicron should not be destroyed because he has both good and evil in him. We also learn that he is a part of everyone. But then Galvatron's death removes the Unicron threat. How? Isn't Unicron still part of everyone and couldn't he just possess someone else?
3) Misha disappears for part of the third story arc - where did she go and why? I think they mentioned it afterwards but I don't remember.
4) When Shockblast escapes from prison we see that there are lots of imprisoned Decepticons. How come for the rest of the series we don't see tons of them, only Megatron's tiny band of Decepticons? At least we see more Autobots on Cybertron during the fourth story arc.
Thanks in advance!