This documentary highlights an outstanding scientific expedition conducted in Iceland by a team of volcanologists from the University of Geneva. In March 2021, in the midst of the COVID crisis, the volcanologists were in a hurry on the Reykjanes peninsula to study the strong seismic crisis related to the spread of magma in the earth's crust. Dwelve into this icelandic historical eruption punctuated by numerous earthquakes shaping the dazzling landscapes of the island.