Getting to be a ship's captain is not easy. It takes years of experience at sea; a whole series of promotions along the way, from able-bodied seaman, to mate, then on to master and then captain. At each step, there are manuals to be studied, practicums to be passed and tests to be taken. And then you have to wait for a position to open up. It doesn't sound like a route for the impatient or the uncommitted. But two driven women have succeeded to the rank of ferry boat captains in North Carolina's Navy, despite all the odds.