Lets say that Plastic man and Mr.Fantastic are next to each other. If either is adjacent to a non plastic powered opponent they can break away with anything over a one, and the opponent can not break away unless they get a six. Now if Plas wants to run from Reed does he need a six to escape, at least a two or above, or does their combined and equal powers cancel out so that regular break away rules apply?

I thought about this situation the other day and can not reason it out to save my life.

From the faq:

"If a figure with Plasticity attempts to break away from another figure with Plasticity, treat it as a normal break away roll (fails on a 1, 2, or 3; succeeds on a 4, 5, or 6)."

If a figure with plasticity attempts to break away from another figure with plasticity, then it is treated as a normal break away roll.