If your file is from the original 1997 anime, this episode is a fan favorite for its tactical combat and character development.
The tags in your file name provide clues about its quality and origin: Berserk Episode 13 [10-bit] [pseudo].1080.mp4
This episode begins the legendary sequence where Guts fights off an entire army single-handedly. If your file is from the original 1997
Guts and Casca are cornered by the Blue Whale Knights, led by the boastful Adon Coborlwitz. Despite being heavily outnumbered, Guts stays behind to hold them off alone so Casca can escape. Key Moments: Berserk Episode 13 [10-bit] [pseudo].1080.mp4
If your file is from the modern CGI series (specifically Season 2, Episode 1), the tone shifts significantly toward the supernatural.