The film stars Stuart Whitman, Frank Aletter, Lonny Chapman, Douglas Fowley, Harry Carey Jr. and Alfonso Arau.

[1][2] Set in Utah, the film tells the story of a cougar whose mate has been killed by a hunter.

She must raise her three cubs, teaching them to survive the harsh realities of the wilderness, while the hunter continues to track the animals with the intent to kill them.

Parts of the film were shot at Castle Valley, Arches, Seven mile Canyon, Dead Horse Point, and the La Sal Mountains in Utah.

The film features one original song, "Let Her Alone", written by Terry Gilkyson.