In the early twentieth century, a mysterious ecological crisis nearly wiped out the fish that most people cared about in the Great Lakes. The impact reverberated across the region, ruining local industries, damaging small town economies and indigenous communities, and destroying the livelihoods of people in the United States and Canada. Myles Dannhausen Jr. talks to Lindsey Haskin, the producer of the film The Fish Thief, about how the mystery was solved and the creativity that saved the Great Lakes Fishery and continues today.