Zero Hours is an anthology series, where every story is a different take on the end of the world - or at least something that feels like the end of the world. Each episode is organized around a kind of apocalypse, whether the cataclysm is planetary or personal. The stories are also set in succeeding centuries, with 99-year intervals separating each episode. The show begins in the past, catches up to the present, and eventually overtakes it.

Some installments are darkly comedic, others grimly contemplative, and others still thrillingly contentious. But they all explore the same question: how do we keep going when the world is crashing down around us? Again and again, issues of survival, trust, and personhood will plague our characters as they attempt to navigate dangerous, changing circumstances and figure out how to avert The End, or at least how to meet it.