If "greatness is thrust upon us," as Winston Churchill once said, then it follows that those destined for greatness are rarely aware of it. Take Jack and Bobby McCallister, for example: two bright young brothers growing up under the watchful eye of their eccentric single mother, Grace McCallister. Grace's personality is a force of nature destined to shape both of these young men's lives and secure one a place in the history books - as President of the United States.
