Twee broers bouwen samen met hun zus een boomhut in de loop van een jaar. Tijdens hun worstelingen en momenten van vreugde ervaren ze de schoonheid en wreedheid van de seizoenen.
Nee, helaas is Hreiður nog niet beschikbaar op Netflix in Nederland.
| Writing | Hlynur Pálmason | Writer |
| Production | Guðmundur Arnar Guðmundsson | Co-Producer |
| Production | Eva Jakobsen | Producer |
| Production | Mikkel Jersin | Producer |
| Production | Katrin Pors | Producer |
| Production | Anton Máni Svansson | Producer |
| Sound | Alex Zhang Hungtai | Original Music Composer |
| Art | DanÍel Imsland | Graphic Designer |
| Sound | Heikki Kossi | Foley Artist |
| Sound | Lauri Marjamaa | Foley Mixer |
| Sound | Björn Viktorsson | Sound Re-Recording Mixer |
| Sound | Björn Viktorsson | Sound Designer |
| Visual Effects | Zafer Fanari | Visual Effects Compositor |
| Visual Effects | Clas Hakeröd | Visual Effects Supervisor |
| Visual Effects | Anders Nyman | Visual Effects Compositor |
| Crew | Jón Viðar Arnþórsson | Stunt Coordinator |
| Editing | Eggert Baldvinsson | Colorist |
| Editing | Kasper Böhnke | Assistant Editor |
| Directing | Hlynur Pálmason | Director |
| Production | Hlynur Pálmason | Executive Producer |
| Camera | Hlynur Pálmason | Director of Photography |
| Editing | Julius Krebs Damsbo | Editor |
