This edition of Dave Grohl’s transcontinental trip down musical memory lane takes him to home turf: Seattle, where he looks back on the birth and tragic end of Nirvana, and the emotional formation of the Foo Fighters, who, with Grohl, write a song about their return visit to the city, and the recording studio where the Foo Fighters were formed. But older parts of music history are covered as well, including visits with Nancy Wilson of Heart and Larry Parypa of the Sonics.