The Big Valley - S1E02 - Forty Rifles

Victoria Barkley heads her adult brood on the Barkley Ranch in California's San Joaquin Valley, near Stockton, in the 1870s. Heath is the illegitimate son of Victoria's husband, Tom (who is dead at the time of the series). Bank robbers, horse thieves, revolutionaries, and land grabbers keep the Barkleys hopping.