Vampire fledgling Michelle Morgan has escaped the grasp of her master Radu Vladislas. Found by a woman named Ana, she is taken to a hospital where a doctor claims to be able to cure her vampirism. Radu, recovering from the near-death delivered by Michelle and her friends, travels to Bucharest to follow his fledgling. He visits the vampire Ash's stronghold. Ash and his protege Serena plot to destroy Radu and employ the help of the humans, Ana and the Doctor.
Unfortunately the movie Subspecies 4: Bloodstorm is not yet available on HBO Max.
| Directing | Ted Nicolaou | Director |
| Directing | Teodor Oprea | First Assistant Director |
| Costume & Make-Up | Letitia Ghenea | Key Hair Stylist |
| Crew | Doru Dumitrescu | Stunts |
| Sound | John Zeretzke | Music |
| Production | Michael J. Mahoney | Co-Producer |
| Sound | William Levine | Music |
| Production | Perry Bullington | Casting |
| Production | Charles Band | Executive Producer |
| Camera | Adolfo Bartoli | Director of Photography |
| Production | Robert MacDonald | Casting |
| Costume & Make-Up | Oana Păunescu | Costume Design |
| Production | Kirk Edward Hansen | Producer |
| Editing | Gregory Sanders | Editor |
| Visual Effects | David A. Wagner | Visual Effects |
| Art | Viorel Ghenea | Art Direction |
| Visual Effects | John R. Ellis | Visual Effects |
| Production | Cătălin Dordea | Casting |
| Sound | Richard Kosinski | Music |
| Art | Radu Corciova | Production Design |
| Costume & Make-Up | Glen P. Griffin | Prosthetic Makeup Artist |
| Writing | Ted Nicolaou | Screenplay |
| Production | Radu Badica | Unit Production Manager |
| Costume & Make-Up | Daniela Bușoiu | Key Makeup Artist |
| Production | Vlad Păunescu | Producer |
