Een team van duikers is op expeditie naar de grootste, mooiste en minst toegankelijke grotten op aarde. Door een tropische storm worden ze gedwongen dieper de grotten in te gaan. De ervaren duiker Frank McGuire heeft de Esa-ala grotten in de Zuidelijke Pacific maandenlang onderzocht. Maar wanneer zijn onbekende vluchtweg geblokkeerd is door een vloedgolf wordt Frank's team inclusief zijn zeventienjarige zoon Josh en financier Carl Hurley gedwongen hun plan radicaal te wijzigen. Met slinkende voorraden moeten ze door een onderwater doolhof navigeren om een uitweg te vinden.
Nee, helaas is Sanctum nog niet beschikbaar op Netflix in Nederland.
| Directing | Alister Grierson | Director |
| Writing | Andrew Wight | Writer |
| Writing | John Garvin | Writer |
| Production | Michael Finley | Producer |
| Production | Andrew Wight | Producer |
| Production | Gregory Apps | Casting |
| Camera | Jules O'Loughlin | Director of Photography |
| Art | Jenny O'Connell | Art Direction |
| Art | Nicholas McCallum | Production Design |
| Visual Effects | Nicholas Tripodi | Animation |
| Visual Effects | Shane Hall | Animation |
| Costume & Make-Up | Mirela Rupic | Costume Design |
| Crew | Chris Anderson | Stunt Coordinator |
| Sound | David Hirschfelder | Original Music Composer |
| Costume & Make-Up | Wizzy Molineaux | Hairstylist |
| Costume & Make-Up | Vivienne MacGillicuddy | Hair Designer |
| Costume & Make-Up | Gail Kane | Makeup Artist |
| Costume & Make-Up | Wizzy Molineaux | Makeup Artist |
| Costume & Make-Up | Vivienne MacGillicuddy | Makeup Designer |
| Costume & Make-Up | Kristine Versey | Makeup Artist |
| Costume & Make-Up | Cheryl Newton | Wigmaker |
| Art | Melinda Neoh | Construction Coordinator |
| Art | Jonathon Hannon | Set Dresser |
| Visual Effects | Chuck Comisky | 3D Supervisor |
| Visual Effects | Simon Ross | Animation |
| Visual Effects | Georgia Smith | Visual Effects Coordinator |
| Visual Effects | Ineke Majoor | Visual Effects Producer |
| Visual Effects | David Booth | Visual Effects Supervisor |
| Visual Effects | Peter Webb | Visual Effects Supervisor |
| Camera | Greg Gilbert | Steadicam Operator |
| Camera | Simon Christidis | Underwater Camera |
| Camera | Jasin Boland | Still Photographer |
| Lighting | Peter Bushby | Gaffer |
| Lighting | Mandy Bradford | Rigging Grip |
| Lighting | David Thomson | Rigging Grip |
| Camera | Adam Kuiper | Key Grip |
| Lighting | Mark Bills | Lighting Technician |
| Lighting | Sam Davies | Electrician |
| Lighting | Billy Harmer | Electrician |
| Lighting | Jack Moffatt | Electrician |
| Costume & Make-Up | Michael Davies | Costume Supervisor |
| Costume & Make-Up | Julie Barton | Key Costumer |
| Costume & Make-Up | Joanne Thompson | Set Costumer |
| Directing | Antoinette O'Neill | Script Supervisor |
| Lighting | Micha Temple | Underwater Gaffer |
| Sound | Craig Beckett | Music Editor |
| Sound | Jason Fernandez | Music Editor |
| Sound | Emily Rogers Swanson | Music Editor |
| Editing | Brett Manson | Digital Intermediate |
| Editing | Rachel McKellar-Harding | Digital Intermediate |
| Editing | Laurie Meade | Digital Intermediate |
| Editing | Nic Smith | Digital Intermediate |
| Editing | Ben Joss | First Assistant Editor |
| Visual Effects | Brian Pearce | Special Effects Supervisor |
| Sound | Kami Asgar | ADR Supervisor |
| Sound | Dan Johnston | Foley |
| Sound | Mario Vaccaro | Foley |
| Sound | Steve Burgess | Sound Effects Editor |
| Sound | Damian Candusso | Sound Effects Editor |
| Sound | Brendan Geaney | Sound Effects Editor |
| Sound | Peter Mills | Sound Effects Editor |
| Sound | Glenn Newnham | Sound Effects Editor |
| Sound | Robert Mackenzie | Sound Re-Recording Mixer |
| Sound | James Harvey | Supervising Dialogue Editor |
| Sound | Paul Pirola | Supervising Sound Editor |
| Directing | Wade Savage | First Assistant Director |
| Production | Rosslyn Abernethy | Production Manager |
| Camera | Richard Harris | Underwater Camera |
| Production | James Cameron | Executive Producer |
| Crew | James Cameron | Presenter |
| Art | David Russell | Storyboard Artist |
| Production | Ryan Makepeace | Production Runner |
