Wanneer een hechte vriendengroep samenkomt voor de bruiloft van Skylar en Dan, hebben ze nog geen idee dat ze getuigen zullen zijn van een serie catastrofale gebeurtenissen die de feestelijk dag zullen veranderen in een strijd om leven en dood. Ze moeten op zoek naar een veilige plek en zien te overleven terwijl een leger aan creaturen, waarvan ze het bestaan niet kenden, de allesomvattende vernietiging ontketent.
| Writing | Chris Dowling | Writer |
| Directing | Casey La Scala | Director |
| Writing | Casey La Scala | Writer |
| Costume & Make-Up | Tonya Johnson | Makeup Artist |
| Art | Kim Breece | Art Department Coordinator |
| Sound | Ryan Gegenheimer | Sound Effects Editor |
| Production | Casey La Scala | Producer |
| Production | Brad Luff | Producer |
| Camera | Doug Emmett | Director of Photography |
| Costume & Make-Up | Cecilia Verardi | Makeup Artist |
| Art | Brian Baker | Art Direction |
| Editing | Paul Covington | Editor |
| Costume & Make-Up | Elisabeth Fry | Makeup Department Head |
| Costume & Make-Up | Carol Cutshall | Costume Design |
| Production | Marc Bienstock | Producer |
| Art | Brian Stultz | Production Design |
| Art | Thurston Edwards | Set Decoration |
| Crew | William Dawson | Special Effects Coordinator |
| Camera | Paige Thomas | Camera Operator |
| Sound | Tom Boykin | Sound Re-Recording Mixer |
| Crew | Charles Rose | CG Supervisor |
| Directing | Amber Harley | Script Supervisor |
| Camera | Alicia Gbur | Still Photographer |
| Production | Nancy Nayor | Casting |
| Sound | Eric Lalicata | Supervising Sound Editor |
| Crew | G. Peter King | Stunt Coordinator |
| Costume & Make-Up | Kari King | Set Costumer |
| Costume & Make-Up | Colleen LaBaff | Hairstylist |
| Costume & Make-Up | Coni Andress | Hairstylist |
| Visual Effects | Chris Morley | Visual Effects Supervisor |
| Crew | Tim J. Walters | Transportation Coordinator |
| Production | Andy Sleet | Location Manager |
| Visual Effects | Sabina Fredenburg | Visual Effects Producer |
| Visual Effects | Chuck Duke | Animation |
| Sound | John St. Denis | ADR Recordist |
| Sound | Dhyana Carlton-Tims | Supervising Dialogue Editor |
| Sound | Nathan Whitehead | Original Music Composer |
| Art | Gregory Messer | Property Master |
| Sound | Shaun Cunningham | Foley Editor |
| Sound | Matt Hovland | ADR Mixer |
| Sound | Dhyana Carlton-Tims | Supervising ADR Editor |
| Sound | Tara Blume | Foley Artist |
| Production | Marty Siu | Extras Casting |
| Editing | Glenn Garland | Consulting Editor |
| Costume & Make-Up | Alex Dawson | Wardrobe Assistant |
| Costume & Make-Up | Robbie McKeithan | Assistant Costume Designer |
| Production | Jackie Burch | Local Casting |
| Editing | Dennis Thorlaksen | Assistant Editor |
| Production | Andrew Zeffiro | Production Assistant |
| Production | Andrea E. Crampe | First Assistant Accountant |
| Production | Karen Chalk Wheeler | Production Accountant |
| Editing | Vahe Giragol | Digital Intermediate Editor |
| Production | Shaun O'Rourke | Production Assistant |
| Editing | Jonathan Reid | Colorist |
| Production | Robin Spears | Production Assistant |
| Production | Andy Henry | Casting Associate |
| Production | Juli Emmons | Extras Casting Assistant |
| Production | Christopher M. Lee | Production Assistant |
| Production | Elizabeth A. Dennis | Production Coordinator |
| Production | Taylor Ammons | Payroll Accountant |
| Production | Kate M. Gibbs | Production Assistant |
| Production | Andrew Chalk | Second Assistant Accountant |
| Crew | Michael McKay | Set Production Assistant |
| Production | Kristen Peluso | Production Assistant |
| Costume & Make-Up | Stephanie A. Hagens | Key Costumer |
| Editing | Daniel Hawley | Digital Intermediate Producer |
| Crew | Scott Corbett | Set Medic |
