End of the Beginning RWBY : Season 3 Episode 12

While Oobleck and Port oversee the evacuation, Ruby and Weiss hunt for the missing Jaune and Pyrrha. At Beacon Tower, Cinder appears to defeat Ozpin so Pyrrha fights her alone to try and save the tower. Ruby's arrival just in time to see the end of the fight triggers a mysterious power she didn't know she had. The episode ends with Ruby deciding to travel to Haven in search of answers.