The story follows (Michael Landon) as he witnesses the immediate aftermath of a mine cave-in .
: Richard Rust played the troubled Seth Pruitt, while Nancy Rennick portrayed Sara, the woman caught between her father's death and her fiancé's secret . "Bonanza" The Quality of Mercy(1963)
: Joe’s childhood friend, Seth Pruitt, admits to killing his future father-in-law, claiming the man's back was broken and he was begging to be put out of his misery . The story follows (Michael Landon) as he witnesses
: Critics noted that this episode showcased a more "mature" Michael Landon, reflecting his personal life changes at the time . "Bonanza" The Quality of Mercy (TV Episode 1963) - IMDb while Nancy Rennick portrayed Sara