The Paper Chase! (S03E11)

The pigs are taken aback when their mother unexpectedly arrives at Sneer mansion, believing she’ll be visiting her affluent sons. Unbeknownst to her, they work as servants for Cyril and are kept from introducing her to him. However, when Cyril becomes intrigued by her vintage car, they find themselves in a wild chase. Thanks to Mrs. Pig's bravery, she ends up saving Cyril's life, which leads her sons to finally come clean about their situation, earning their mother's understanding and forgiveness.