Wolves is a documentary by filmmaker David Douglas (made with the assistance of the National Wildlife Federation and National Geographic) that follows the restoration of wolf populations to Yellowstone National Park. The film recounts the 19th Century expansion of the United States in the West, and the damaging effects of the settlement on both the environment and Native American nations. The historical material prefaces a detailed presentation of efforts by scientists, preservationists, and groups such as the Nez Perce to aid in the wolves' recovery, with generous footage depicting the life cycle of the wolf and relationships within the pack. The soundtrack features traditional Native American music updated for contemporary instrumentation. Wolves was originally made for widescreen projection, evident from the many tracking shots of the dramatic Yellowstone landscape and the sequences showcasing action footage and vintage photos in many small frames. The film is narrated by musician Robbie Robertson.