S1·E15 Grandma Fools Around

The family gets ready for Grandma and Grandpa's 55th anniversary at the house. Meanwhile, back at their house, Grandma and Grandpa are reminiscing over old photos and love letters that Grandpa sent her during World War 2. When Grandpa reads one of them, he finds out it wasn't his, and he threatens to leave Grandma and wants a divorce. Grandma goes to see the family and cries over waht has been happening. Carl is upset at his mother, yet goes to see Grandpa and brings him to the house. At the house Grandpa and Grandma do not speak, and Nell gets fed up and tells them that she is divorced, Ed is a single bachelor, the Chief recently lost his wife, and they all wish they had someone to love. Grandma and Grandpa finally get back together after this talk Nell gives.