Jordan and the Praetor try to track down Heidi, while the Shadowhunters try to locate Jonathan. Meanwhile, Luke looks to Maryse for help and Isabelle gets a possible lead on information on what is really going on in the Clave prisons.
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A list of the songs and score music featured in this episode:
- "Bad Reputation" - Murder Shoes
- "Wolves" - The TenFiveSixty
- "Glass House" - Morgan Saint
- The title "Beati Bellicosi" is the slogan of the werewolf organization Praetor Lupus. It is Latin for "Blessed are the warriors."
- When Maryse asked Luke if he was considering buying the Ouroboros: Used Books & Antiques, Luke was quick to say "no, not in this lifetime." Ironically, Luke runs a bookstore in the books and in the alternate dimension in This World Inverted, and a book and antiques store in the film adaptation.
- 3x09: Familia Ante Omnia