Ondanks de waarschuwingen denken verschillende mensen de ideale vakantiebestemming gevonden te hebben. Groot is dan ook de schrik als blijkt dat er wel degelijk iets goed mis is. Een vreemd wezen stuurt zijn vliegende helpers er op uit om mensen aan te vallen en hun bloed uit te zuigen.
Nee, helaas is Without Warning nog niet beschikbaar op Netflix in Nederland.
| Directing | Greydon Clark | Director |
| Writing | Lyn Freeman | Writer |
| Writing | Daniel Grodnik | Writer |
| Writing | Steven R. Mathis | Writer |
| Writing | Bennett Tramer | Writer |
| Production | Greydon Clark | Producer |
| Production | Paul Kimatian | Executive Producer |
| Production | Skip Steloff | Executive Producer |
| Sound | Dan Wyman | Original Music Composer |
| Camera | Dean Cundey | Director of Photography |
| Editing | Curtis Burch | Editor |
| Art | Jack De Wolf | Production Design |
| Crew | Greg Cannom | Makeup Effects |
| Costume & Make-Up | Alistair Mitchell | Makeup Artist |
| Crew | Joe Quinlivan | Special Effects |
| Costume & Make-Up | Elois Jenssen | Costume Design |
| Directing | Caren Singer | First Assistant Director |
| Directing | Jeffrey Sudzin | Second Assistant Director |
| Camera | Clyde E. Bryan | First Assistant Camera |
| Camera | Thomas Vanghele | Second Assistant Camera |
| Directing | Brenda Weisman | Script Supervisor |
| Sound | Jean Clark | Boom Operator |
| Art | Woody Perkins | Props |
| Lighting | Scott Buttfield | Gaffer |
| Lighting | Howard Herrington | Assistant Gaffer |
| Camera | Dylan Shephard | Key Grip |
| Camera | Mike Connors | Grip |
| Lighting | Matia Karrell | Electrician |
| Lighting | Brenda Haverstock | Electrician |
| Camera | Hedy Dietz | Still Photographer |
| Production | L. Steven Snyder | Production Accountant |
| Editing | Julia Evershade | Assistant Editor |
| Sound | Robert Dietz | Sound |
| Sound | Earl Watson | Sound Editor |
| Art | Haywood Perkins | Property Master |
| Costume & Make-Up | Jack Buehler | Wardrobe Supervisor |
| Production | Daniel Grodunk | Co-Producer |
| Production | Lyn Freeman | Co-Producer |
| Production | Curtis Burch | Associate Producer |
| Production | Milton Spencer | Associate Producer |
| Production | Jefferson Richard | Production Manager |
