Originally posted by jedijunky1138
I'm not sure that Palps and Dooku are on the same side at this point. I don't think Dooku has made the connection yet that Palps is Sidious. I do however believe that Sidious commands Dooku to kidnap Palpy. This is to set up the duel between Anakin and Dooku so that Anakin can kill off Dooku leaving the position of apprentice open for himself however unaware he may be.
But Dooku says "What if I were to tell you that the Senate was now in control of the dark lord of the Sith?" or something along those lines, in Episode II. So Dooku knows very well who Sidious is, and who Palpatine is.
As for the reason behind the kidnapping, I think this is how it stands:
Dooku and Sidious talked and Dooku thinks that with the ease of capturing Palpatine (since obviously he won't put up a fight if he's part of the plan), that'll create a crushing blow to the Republic, and will create disarray within their ranks and whatnot.
Palpatine on the other hand, knows that this will be foiled, and uses this as his chance to finish the war in certain senses, and test Anakin vs Dooku.
Grievous, has nothing to do with this. He's completely out of the inner plans.