Determinism thoughts?

Free will can throw that "plan" off! Just because the coin is in the air doesn't mean it will land at all. Someone could decide to catch it on the down, which has nothing to do with the condition of the coin! Dawkins ertions basically state that everything is planned out for us, that there is no such thing as coincidence. It could be argued that the gift of free will can interrupt those "plans". What if I decide not to throw the coin in the air in the first place? Then the coins condition is no longer a factor!