The present article aims to examine and analyze the manifestations of Satanism in the extensive and well-known television series Supernatural. It adopts a critical discourse analysis approach to selected parts of the series in which concepts, themes, symbols, and characters associated with Satanism are prominently featured. Utilizing a qualitative method and analysis at three levels—textual, semantic, and discursive—the study explores how religious concepts, particularly the relationship between God, Satan, and humanity, are represented within the series. The findings indicate that Supernatural, through semantic inversion of concepts such as good and evil, the humanized and at times sympathetic portrayal of demons, and the deliberate use of prominent satanic symbols such as the obelisk, pentagram, and heavy metal music, offers a redefinition of spirituality in the guise of entertainment. This redefinition, situated within broader cultural and media discourses, carries significant implications for religious identity and, more specifically, for the public perception of religion.