The third and final film in this family film series, Mountain Family Robinson, was released in 1979.
Plot
In this sequel, the Robinsons continue their relaxed life in the mountains. More adventure awaits as they prepare themselves for the upcoming fierce winter. Pat fights a bout of pneumonia as the cold weather takes hold. The wildlife continues to be menacing and dangerous at times. Skip attempts to return to civilization for medication to treat Pat's pneumonia on skis and is caught in an avalanche. Meanwhile, Pat and the children are terrorized by a pack of hungry wolves led by the giant pack leader named "Scarface" because of his disfigured eye. Toby struggles to fight them off with a rifle as they methodically tear their way into the house and finally confronts Scarface in an explosive climax. The Robinsons' courage and the will to survive, along with breathtaking surroundings, help keep the family happy in their mountain home.