S2E10 · The Inheritance

Complete story — includes the ending

Pete, who is unable to conceive a child with Trudy and is looking to adopt, runs into resistance from his mother, who does not want someone not of their bloodline as part of the family. When his mother threatens to disinherit him, Pete counters that his father spent their inheritance, forcing Bud to come clean about their mother's financial state. Paul prepares to attend an aerospace convention in California with Pete, dismaying Sheila, who had plans to register black voters in Mississippi with Paul. Despite Don and Betty's separation, they take a trip together to visit Betty's father Eugene, who has had a stroke and is in the early stages of dementia, at one point mistaking Betty for her dead mother. Although the two share an intimate encounter in her father's house, Betty tells Don they are still separated when the trip is over. Returning home, Betty discovers that Glen is living in the backyard playhouse, having run away from home; Betty calls Helen, and ends up confiding in her about potentially divorcing Don. Meanwhile, Don returns to the office and decides to replace Paul on the trip to California.