Phil Rowley and Mark Melnyk return to Henry’s Lake, Idaho in search of what the locals call a grand slam, a Cuttroat, Rainbow, Brook and Hybrid Trout on the fly, in this episode of The New Fly Fisher. Henrys Lake is one of North America’s most famous Trout Lakes, containing specimen fish of many variants to over that rare ten pound mark. The most desired off the variants are the hybrids of Rainbow and Cutthroat Trout, known for their aggressive feeding and size. Phil and Mark experiment with fry patters and dragonflies to tempt the predatory, cold water, autumn fish, and after some lovely trout, Phil feels something a whole lot heavier on the end of the line.