In the late 1970's and early 1980's a sexual predator was on the loose. Two little girls had heard about the man dubbed the 'Southwest Calgary Rapist', but they never imagined they would be attacked while riding their bikes one hot sunny day. At the same time, homicide investigators were on the trail for a killer. Follow along as Senior Crime Reporter Nancy Hixt shares the stories of those attacked and the steps police took in their hunt for a predator.