Sanctuary follows the life of Dr. Helen Magnus, a brilliant and enigmatic scientist who runs the Sanctuary, a secret organization dedicated to finding, studying, and protecting 'Abnormals'—creatures that exist outside the boundaries of conventional science. Alongside her reluctant protégé, forensic psychiatrist Dr. Will Zimmerman, and her daughter Ashley, Magnus navigates a hidden world where these creatures are often misunderstood, hunted, or exploited by powerful factions. The series explores the moral complexities of coexisting with beings that possess extraordinary abilities. As the team faces threats from the Cabal, a shadowy organization seeking to weaponize Abnormals, they must also grapple with the secrets of Magnus's past and the true nature of the creatures they protect. The show blends science fiction, fantasy, and procedural elements, emphasizing the importance of empathy and the pursuit of knowledge in a world that fears the unknown.