Bonanza (1959)

S11E17 The Trouble with Amy

Ben steps in to help Amy Wilder, a quirky animal enthusiast whose mental stability comes under scrutiny after a neighbor expresses a desire to mine her property. The neighbor petitions the court for a hearing to label Amy as senile, aiming to seize her land. With time running out, Ben embarks on a frantic mission to locate Amy's family members who can vouch for her mental competence.