Bonanza (1959)

S3E4 The Lonely House

Little Joe stops by to see widow Lee Bolden, bringing her a bank draft for her late husband’s investments with Ben. However, these investments were actually failing ventures, as Ben sought to assist his friend. During the visit, a wounded man unexpectedly enters, and Joe realizes it’s Trock, the bank robber. Lee, who used to nurse her physician husband, tends to Trock’s gunshot wound. Joe soon discovers that Lee has feelings for Trock, and this love might be the only thing keeping him from death.