A dying Earth and a fragile off-world colony are bound together by one pilot's choice in Tides, a German-Swiss science-fiction thriller directed by Tim Fehlbaum.

What is Tides about?

Generations after a catastrophe emptied most of the planet, humanity's last hope lives on Kepler, a distant space colony struggling to keep its population alive. When contact with an advance scouting mission goes quiet, an astronaut from Kepler travels back down to the surface to find out what happened and whether Earth can still support the people who left it behind. What she finds is a scattered, hardened population clinging to survival among the ruins, and a set of choices that will decide whether the two worlds are drawn back together or split apart for good. Tides builds its stakes on the ground rather than on spectacle: the film follows its central astronaut as she is forced to weigh the colony that raised her against the world that colony was built to escape. The cast, led by Nora Arnezeder alongside Iain Glen, Sarah-Sofie Boussnina, Sope Dirisu, Sebastian Roché and Joel Basman, plays out that dilemma across a landscape shaped more by mud and weather than by chrome.

About the cast

Nora Arnezeder anchors the story as the astronaut sent to assess Earth's survivors, with Iain Glen and Sarah-Sofie Boussnina among the figures she encounters on the ground. Sope Dirisu, Sebastian Roché and Joel Basman round out a cast drawn from German, Swiss and international productions, matching the film's co-production roots.

Context & significance

Tides arrived in 2021 as a German-Swiss co-production, part of a wave of European science fiction that trades large-scale destruction for closer, character-driven stakes. Director Tim Fehlbaum sets his story after the disaster rather than during it, focusing on what daily survival looks like once the initial catastrophe is long over. The film runs 104 minutes and sits in the sci-fi/thriller space alongside other post-catastrophe dramas that ask what a habitable Earth would actually require to support life again, rather than treating that return as a foregone conclusion.

Watching Tides on Ktime

Tides is available on K-Time with Persian dubbing and Persian subtitles, so viewers can choose either option depending on preference. Watching requires only a free K-Time account login, with the Farsi-language interface built for Persian-speaking audiences wherever they are.