Complex sentence: The peace of Quahog is disrupted when the leaves start turning fall colors and "leafers" from New York invade town: massive traffic jam appears at the road; when the family drives to church, the kids start arguing.
Split into simpler sentences: The peace of Quahog is disrupted when the leaves start turning fall colors and "leafers" from New York invade town. When the family drives to church, the kids start arguing.