The tenth year of war with aliens. Nill — a military correspondent, two years on the front line — finds himself the sole survivor of a failed combat drop. Immobilized, cut off from his unit, he comes face to face with a dying alien — a creature he has spent his entire life believing was the enemy. Both have no way out. Both have only the hours until dawn.

What unfolds between them that night will shatter everything Nill believed — and set in motion events that will change the course of the war forever.

Callsign Zero is a story about what happens when propaganda goes silent and two beings are left alone with each other. About language as a weapon. About truth as the last act of humanity. And about the price paid by those who discover it.

The film is being created entirely using generative artificial intelligence technologies at every stage of production — from visual world-building and character development to scene generation and final edit. Callsign Zero is the first fully AI-produced short film from Proteus Pictures and one of the first sci-fi drama projects of its kind in the emerging field of AI filmmaking worldwide.

Proteus Pictures · Athens, Greece · 2026