the day before 9/11, he landed in england to recruit for the group, which in some ways was a forerunner to isis. >> it's the first islamist organization responsible for popularizing the notion of resurrecting the so-called islamic state. his caliphate so-called islamic state is what he has been dreaming of since 1953. ♪ >> in the months after 9/11, nawaz was arrested. in an egyptian jail with what he calls the cream of the crop of jihadists, he was thrilled at first about all he could learn from them. but then he had a jailhouse revelation. >> living so close with them for four years in prison, i came to the conclusion that if these guys, any of them, ever got to power and ever declared this so-called caliphate, it would be