Nature: River of No Return

This installment of the long-running PBS series looks at the experiences of wolf biologist Isaac Babcock and his bride, Bjornen, who take a yearlong honeymoon in the Frank Church-River of No Return Wilderness in Idaho. The 2.5-million-acre wilderness is home to an abundance of wildlife that includes wolves, which are being reintroduced to the area after an absence of 50 years; bighorn sheep; coyotes; deer; elk; and otters.