Complex sentence: The next day, Eugenio drives them to the Austrian border, as Weiss and Morales show up at Maria's house and learn from Maria that Anna and Ben are married, which is then reported to Anna's parents.
Split into simpler sentences: The next day, Eugenio drives them to the Austrian border, as Weiss and Morales show up at Maria's house. Maria informs them that Anna and Ben are married, which is then reported to Anna's parents.