Venturing back over 200 years into the American wilderness, have Doogie and Tom bitten off more than they can chew (like Leonardo DiCaprio with that bison liver)? Along the way, they’ll encounter bears—some of which might be on cocaine—savage native Americans and naked beaver trappers. What could possibly go wrong? Just as well they have guides: Philip Deloria, Leverett Saltonstall Professor of History at Harvard University (7.28); and Dr Wesley Larson, host of popular podcast Tooth and Claw: True Stories of When Animals Attack (31.54).