R.G. Armstrong guest-stars as Colonel Keith Jarell, Ben Cartwright's old comrade in arms. Arriving at the Ponderosa, Jarrell asks Ben to join him in his efforts to secure a lasting peace with the Paiute Indians. But the General is hiding his true agenda-one involving that deadly new weapon of destruction, the Gatling Gun. Written by William Douglas Lansford and S. S. Schweitzer, "The Last Mission" made its network TV bow on May 8, 1966. ~ Hal Erickson, Rovi