The film, based on Charles Sellier Jr.’s novel, became a surprise hit. Made on a modest budget of $165,000, it went on to gross nearly $30 million at the box office. This incredible success led to the creation of a television series adaptation, where Haggerty reprised his role as the nature-loving protector of the wilderness.

“The Life and Times of Grizzly Adams” resonated with audiences, with its genial and heartfelt tone. It was a story of a man falsely accused of murder who seeks refuge in the woods, befriends animals, and adopts an orphaned bear. As John Leonard of The New York Times aptly noted in his review, the show “lukewarms the heart,” combining elements of communing with nature and tugging at the heartstrings.

Haggerty’s portrayal of Grizzly Adams earned him the adoration of fans and even a People’s Choice Award in 1978 for being the most popular actor in a new series. The show’s success also led to the creation of sequels like “Legend of the Wild” in 1978 and “The Capture of Grizzly Adams” in 1982.