Little House on the Prairie (1974)

Season 2: Episode 9

The Olesons get themselves invited onto the Ingalls family campout, after Nellie complains that it will give Laura and Mary an advantage for the school holiday project of leaf-collecting. The two men bond while fishing and their wives try to improve their relationship, but the children continue to clash. However, when Nellie falls into a river, her later false account of what happened brings out the same Mrs. Oleson. Back at the school, the result of the leaves project gives some satisfaction to Laura and Mary.