The Wave (2015)

Geologist Kristian Eikjord is working his final day in the Norwegian tourist destination Geiranger before moving to Stavanger with his family, when sensors on the mountain indicate groundwater has disappeared. Later, waiting for the ferry with his children while his wife Idun works a few more days at the hotel, Kristian has an epiphany and rushes back to the geology center, leaving his children Sondre and Julia in the car. He and Jacob take the helicopter and find the sensor wires have snapped. Kristian’s former boss Arvid agrees to enter a higher state of alert, but not to sound the evacuation alarm. Kristian finds the children have gone to the hotel. Julia wants to say goodbye to their house so Kristian drives with her to stay there one last night. Sondre heads down to the basement with headphones to skateboard.

Arvid and Jacob check instrument readings and find them accurate, not a malfunction. Kristian reviews old documents suggesting the readings could indicate an upcoming avalanche. He calls the station and orders the immediate evacuation of Arvid and Jacob from the crevice, and to sound the tsunami alarms for the residents of Geiranger. Moments later the avalanche happens. Arvid sacrifices himself when Jacob’s foot becomes trapped, linking Jacob to their zip-line and falling to his death shortly after. The rockslide crashes into the fjord creating a gigantic tsunami 80 metres (260 ft) high roaring towards Geiranger.