We have only just cracked this, so we're handing off to the Fantagraphics in-house promotional text:
This is a psychedelically drawn, boldly political retelling of the 1950s graphic novel The Eternaut, whose imagery is still used as a symbol of resistance in Latin America to this day.
In the 1950s, pioneering comics writer Héctor Germán Oesterheld authored the serialized science-fiction adventure story The Eternaut, now a seminal Argentine graphic novel. In 1969, Oesterheld rebooted his narrative as a dark warning for a mature readership; Alberto Breccia manifested the tonal shift with an expressionistic, disorienting art style.
In The Eternaut 1969, a deadly "snow" falls. Juan Salvo’s small household of family and friends are spared, protected inside his home—but what horror awaits them in the silent, deserted streets of Buenos Aires? Venturing out in search of supplies, our everyday heroes soon join the resistance against an enemy far more sinister than anything they could have imagined.