A socialite retains Matlock to defend her husband's accused killer, a maid (Theresa Saldana) who won't help her own defense.
Lou is afraid that Mary is becoming addicted to sleeping pills when, after too many sleepless nights, she turns to prescription medication for help.
A black funeral wreath on his office door predicts Barnaby's death on Sunday. Even after he figures out who the psycho ex-convict is with a vendetta against him, Barnaby is stymied until his daughter-in-law is held hostage.
Joe becomes the target of a tough and vengeful Kentucky family, after he kills one of them who almost sets the Ponderosa on fire and the Cartwrights take in the dead man's daughter.
Glowing humanoids invade the Robinsons' colony in search of a brain to navigate their ship. Their plan is foiled when Will's worry over his parents' safety makes his brain unusable.