>> naturally they told the police about that. nothing came of it. and as the air thickened into a steamy august, the weeks that passed brought no new leads. just tourists clamoring for the cool shade of historic carriage rides. and kate waring, the urgency of finding her, began to fade. >> and that was driving me nuts. i thought, i'm not going to put up with this. we've got to get going. we've got to get moving on this. >> and in the hushed cool of his perch overlooking the city, someone was listening. a new investigation begins. but it's not the police who are behind it. >> we're the cream of the crop, and our job was to find kate waring. not finding kate was not an option. >> who are these guys? when strangers on a train cons.