Een jonge verpleegster, Quinn genaamd, downloadt een app op haar telefoon die voorspelt wanneer iemand zal sterven. Deze app vertelt haar dat ze nog maar krap drie dagen te leven heeft. Vanaf dat moment begint een mysterieus figuur haar te achtervolgen.
Nee, helaas is Countdown nog niet beschikbaar op Netflix in Nederland.
| Writing | Justin Dec | Writer |
| Directing | Justin Dec | Director |
| Production | John Rickard | Producer |
| Production | Sean Anders | Producer |
| Production | John Morris | Producer |
| Production | Zack Schiller | Producer |
| Production | Robert Simonds | Executive Producer |
| Camera | Maxime Alexandre | Director of Photography |
| Production | Rich Delia | Casting Director |
| Art | Clayton Hartley | Production Design |
| Art | Jon J. Bush | Set Decoration |
| Costume & Make-Up | Abby O'Sullivan | Costume Design |
| Crew | Marc Scizak | Stunt Coordinator |
| Sound | Sean McCormack | Supervising Sound Editor |
| Sound | Joel Dougherty | Sound Re-Recording Mixer |
| Sound | Thomas Curley | Sound Mixer |
| Directing | Jane Goldsmith | Script Supervisor |
| Art | Erick Garibay | Property Master |
| Production | Adam Fogelson | Executive Producer |
| Production | Gregory Plotkin | Executive Producer |
| Production | Tyler Zacharia | Executive Producer |
| Production | Alexander Boies | Executive Producer |
| Production | Matthew Medlin | Executive Producer |
| Editing | Brad Wilhite | Editor |
| Sound | Danny Bensi | Music |
| Sound | Saunder Jurriaans | Music |
| Sound | Jason Markey | Music Supervisor |
| Production | Max Jacoby | Co-Producer |
| Production | Devin Andre | Co-Producer |
| Production | Nicolas Harvard | Co-Producer |
| Production | Matthew Medlin | Unit Production Manager |
| Directing | Nicolas Harvard | First Assistant Director |
| Directing | Cyndi Martin | Second Assistant Director |
| Crew | Allison Caetano | Stunts |
| Crew | Bobby Lee | Stunts |
| Crew | Keith Campbell | Stunts |
| Crew | Mike Li | Stunts |
| Crew | Shauna Duggins | Stunts |
| Crew | Athena Perample | Stunts |
| Crew | Charles Grisham | Stunts |
| Crew | Norb Phillips | Stunts |
| Crew | Terrence Julien | Stunts |
| Crew | Dirk Rogers | Stunts |
| Crew | Lauren Shaw | Stunts |
| Art | Harrison Hartley | Art Direction |
| Visual Effects | Melissa Brockman | Visual Effects Producer |
| Camera | Nathan Stern | Steadicam Operator |
| Camera | Nathan Stern | "A" Camera Operator |
| Camera | Blake Hooks | Second Assistant "A" Camera |
| Camera | Stefano Ben | "B" Camera Operator |
| Camera | Devon Hoff-Weekes | "B" Camera Operator |
| Camera | Alex Grossfeld | First Assistant "B" Camera |
| Camera | Jacqueline Stahl | First Assistant "B" Camera |
| Camera | Renni Pollock | Second Assistant "B" Camera |
| Sound | John Sheridan | Boom Operator |
| Crew | Jeremy Hays | Special Effects Coordinator |
| Costume & Make-Up | Tami Lane | Makeup Department Head |
| Costume & Make-Up | Erica Preus | Key Makeup Artist |
| Costume & Make-Up | Tracey Henton | Makeup Artist |
| Costume & Make-Up | Jacenda Burkett | Makeup Artist |
| Costume & Make-Up | Stacy Schneiderman | Hair Department Head |
| Costume & Make-Up | Anna Milhouse | Key Hair Stylist |
| Costume & Make-Up | Kaylie Klone | Hairstylist |
| Costume & Make-Up | Melissa Oliveira | Hairstylist |
| Costume & Make-Up | Marisa Pinuelas | Hairstylist |
| Costume & Make-Up | Jacqueline Weiss | Hairstylist |
| Costume & Make-Up | Anthony Veader | Hairstylist |
| Crew | Tammy Sandler | Unit Publicist |
| Camera | Hopper Stone | Still Photographer |
| Crew | Steve Polon | Transportation Co-Captain |
| Crew | Gary Preece | Transportation Coordinator |
| Sound | Tim Tuchrello | Assistant Sound Editor |
| Sound | Branden Spencer | ADR Supervisor |
| Sound | Hector C. Gika | Sound Designer |
| Sound | Michael Payne | Sound Effects Editor |
| Sound | Geordy Sincavage | Foley Supervisor |
| Sound | Jamie Famularo | Foley Editor |
| Sound | Alexander Jongbloed | Foley Editor |
| Sound | Vincent Guisetti | Foley Artist |
| Sound | Monique Reymond | Foley Artist |
| Sound | Brendan Croxon | Foley Mixer |
| Sound | Phil Lee | Sound Mix Technician |
| Production | Ashley Lambert | ADR Voice Casting |
| Sound | Mary Parker | Music Editor |
| Sound | Meredith McBee | Music Coordinator |
| Crew | Matt Moyes | CG Supervisor |
| Editing | Mark Griffith | Digital Intermediate Colorist |
| Camera | David Conti | Key Grip |
| Lighting | Sean Smith | Gaffer |
| Lighting | Noah Cruz | Best Boy Electric |
| Camera | Ralph Del Castillo | Dolly Grip |
| Camera | Jason L. Stevens | Dolly Grip |
| Camera | Richard D. Conti | Grip |
| Camera | Jason D. Habeger | Grip |
| Lighting | Brian Schreiner | Rigging Grip |
| Production | Jay Traynor | Location Manager |
| Art | Marquis Martin | Assistant Property Master |
| Art | Rick Staves | Leadman |
| Costume & Make-Up | Deborah Goldstein | Costume Supervisor |
| Costume & Make-Up | Tina Zepeda | Key Costumer |
| Costume & Make-Up | Tiffany Lazette Powers | Set Costumer |
| Costume & Make-Up | Devon Simon | Costume Assistant |
| Production | May Nejati | Production Supervisor |
| Production | Harrison Gunnarshaug | Production Secretary |
| Production | Austin Miller | Production Secretary |
| Directing | Noreen Dimster-Denk | Second Second Assistant Director |
| Art | Lima Hyelim Kang | Graphic Designer |
| Art | Megan Soderberg | Art Department Coordinator |
| Production | Katherine McCown | Casting Assistant |
| Production | Bill Dance | Background Casting Director |
| Production | Ami Francis | Production Accountant |
| Production | Jessie Francis | Assistant Accountant |
| Crew | Lauren Bertoni | Studio Teacher |
| Crew | Alma Weaks | Craft Service |
| Crew | Yaminah McKessey | Post Production Supervisor |
| Editing | Gene A. Lewis Jr. | First Assistant Editor |
| Sound | Jason Coleman | Foley Mixer |
| Visual Effects | Bryan Binder | Visual Effects Producer |
