Bonanza: Under Attack

Return once again to the Ponderosa when a notorious outlaw comes to the ranch, sending the Cartwrights into a showdown with the law. Frank James, brother of the infamous Jesse James has turned his back on the outlaw life, been acquited by three juries and is returning home a free man when a gang of renegade Pinkerton detedtives take it upon themselves to exact their own brand of punishment. After being ambushed and badly wounded by Siringo's men, James finds refuge on the Ponderosa and joining forces with the young Cartwrights takes on the Pinkertons in an ultimate battle for justice! (official distributor synopsis)