When terrorist action releases a secret government virus in the Houston Federal building, the employees become aggressive and homicidal. Federal officials quarantine the building to wipe out the infected and control the story, but a small group of uninfected are fighting to get out.
| Writing | D. Todd Deeken | Writer |
| Directing | George Mendeluk | Director |
| Production | Rhett Giles | Co-Producer |
| Production | Henry Boger | Producer |
| Production | George Mendeluk | Executive Producer |
| Production | Stan Spry | Producer |
| Production | Justin Jones | Producer |
| Production | Courtney Brin | Associate Producer |
| Production | D. Todd Deeken | Co-Producer |
| Crew | Deven MacNair | Stunts |
| Production | George Killian | Executive Producer |
| Production | Mert Meeker | Executive Producer |
| Production | Courtney Brin | Casting Director |
| Production | Rhett Giles | Casting Director |
| Crew | David Major | Stunt Coordinator |
| Crew | Nikki Hester-Jose | Stunt Double |
| Crew | Jay Torrez | Stunt Double |
| Crew | Steve Romminie | Stunt Double |
| Production | Justin Jones | Unit Production Manager |
| Directing | Douglas Dean III | First Assistant Director |
| Directing | Noreen Perez | Second Assistant Director |
| Camera | Brad Reeb | Director of Photography |
| Camera | Brad Reeb | Camera Operator |
| Camera | Patrick LaValley | First Assistant Camera |
| Camera | Peggy Knoebel | Second Assistant Camera |
| Camera | Ryan Kunkleman | "B" Camera Operator |
| Camera | Jerry Turner | First Assistant "B" Camera |
| Camera | Peggy Knoebel | Second Assistant "B" Camera |
| Camera | Andrew T. Olsen | Still Photographer |
| Camera | Jesse Michael Owen | Steadicam Operator |
| Camera | Ryan Kunkleman | Second Unit Director of Photography |
| Art | Rozalyn DeCompte | Art Direction |
| Production | Collin Galyean | Production Designer |
| Crew | John Nelson | Second Unit |
| Crew | Shawn Nelson | Second Unit |
| Art | John Finley | Set Dresser |
| Art | Eric Breaux | Art Department Assistant |
| Lighting | Gergory Pickard | Gaffer |
| Camera | John Pycha | Key Grip |
| Camera | Matt Hoefler | Dolly Grip |
| Camera | Darren Arnaud | Grip |
| Camera | Michael Dugas | Grip |
| Lighting | Robby Williams | Best Boy Electric |
| Lighting | Stanley Wong | Electrician |
| Sound | Michael Gilbert | Sound Mixer |
| Sound | Ron King | Sound Mixer |
| Sound | Lorne Boni | Boom Operator |
| Costume & Make-Up | Serah D'Laine | Costume Designer |
| Costume & Make-Up | Lauren Norfleet | Assistant Makeup Artist |
| Production | Ira Kortum | Extras Casting |
| Costume & Make-Up | Christina Kortum | Key Makeup Artist |
| Costume & Make-Up | Jennifer Lemons | Costumer |
| Production | Courtney Brin | Production Coordinator |
| Directing | Courtney Brin | Script Supervisor |
| Production | Stuart Sauvarin | Assistant Production Coordinator |
| Production | Zak Klutts | Key Set Production Assistant |
| Production | Veronica Miller | Location Production Assistant |
| Production | Nicolas Mezzanatto | Location Production Assistant |
| Production | Aaron Phillip Stark | Location Production Assistant |
| Production | Michelle Sands | Location Production Assistant |
| Production | Alex Miller | Location Production Assistant |
| Production | Kathleen Turnage | Location Production Assistant |
| Production | Seth Duhy | Location Production Assistant |
| Production | Anthony Fankhauser | Line Producer |
| Crew | Todd Giroux | Post Production Supervisor |
| Production | Tara Krick | Post Production Coordinator |
| Editing | Andrew Poe | Assistant Editor |
| Visual Effects | Tiny Juggernaut | Visual Effects |
| Visual Effects | Davey Jones | Visual Effects Producer |
| Editing | Tony Kent | Editor |
| Editing | Sean Albertson | Editor |
| Editing | Kurt Nishimura | First Assistant Editor |
| Editing | Noe Chavez | First Assistant Editor |
| Visual Effects | Jason Shulman | Visual Effects |
| Visual Effects | Ray McFarland | Visual Effects |
| Crew | Kurt Nishimura | Visual Effects Editor |
| Editing | Kurt Nishimura | Colorist |
| Editing | Darren Griffiths | Colorist |
| Art | Ray McFarland | Opening Title Sequence |
| Visual Effects | Nathan Matsuda | Additional Visual Effects |
| Visual Effects | Kurt Nishimura | Additional Visual Effects |
| Visual Effects | Jason Shulman | Additional Visual Effects |
| Visual Effects | Duane Stinnett | Additional Visual Effects |
| Sound | Zack Howard | Scoring Mixer |
| Sound | Russ Gorsline | Dialogue Editor |
| Sound | Russ Gorsline | ADR Supervisor |
| Sound | Zack Howard | Music Editor |
| Sound | Anthony Gainer | Sound Designer |
| Sound | Tim Leitch | Sound Effects Editor |
| Sound | Noah Davis | Assistant Sound Editor |
| Sound | Ryan Collins | Sound Editor |
| Sound | Andrew Garrett Lange | ADR Mixer |
| Sound | Anthony Gainer | Foley Artist |
| Sound | Tim Leitch | Foley Artist |
| Sound | Leslie Shatz | Sound Re-Recording Mixer |
| Sound | Gabriel Heredia | Sound Re-Recording Mixer |
| Sound | Russ Gorsline | Sound Re-Recording Mixer |
