Which critically acclaimed science fiction television series, rebooted in 2004, depicts the last remnants of humanity fleeing across the galaxy in a civilian fleet, constantly pursued by the robotic Cylons?

The science fiction television series that perfectly matches this description is "Battlestar Galactica." Originally a 1978 series, it was famously rebooted in 2004, beginning with a critically acclaimed miniseries. This reimagined version captivated audiences with its gritty realism and complex storytelling, earning numerous accolades.

The show's premise centers on the last surviving members of humanity, who are fleeing across the galaxy in a civilian fleet led by the titular military spaceship, the Battlestar Galactica. They are relentlessly pursued by the Cylons, a race of sentient robots originally created by humans. The Cylons launched a devastating attack that annihilated the Twelve Colonies of Kobol, leaving only about 50,000 human survivors.

A significant departure from the original series was the introduction of humanoid Cylons, who are virtually indistinguishable from humans and have infiltrated the fleet, adding layers of paranoia and intrigue. This element, combined with themes of war, religion, politics, and what it means to be human, made the 2004 "Battlestar Galactica" a profound and engaging series. The desperate search for a fabled thirteenth colony, Earth, drives much of the narrative, as humanity battles for its very existence against its own creations.