The Oregon Trail.

18 episode adventure serial. 1. Westward Ho!, 2. White Treachery, 3. Across the Continent, 4. Message of Death, 5. Wagon of Doom, 6. Secret Foes, 7. A Man of God, 8. Seeds of Civilization, 9. Justice, 10. The New Era, 11. A Game of Nations, 12. To Save an Empire, 13, Trail of Death, 14. On to Washington, 15. Santa Fe, 16. Fate of a Nation, 17. For High Stakes, 18. Victory