The Darkest Hour (2011) presents a unique take on the alien invasion genre, following five young tourists in Moscow who find themselves among the few survivors when invisible extraterrestrial entities attack Earth through the global power supply. Directed by Chris Gorak, this Russian-American co-production creates a tense atmosphere as the characters navigate a decimated Moscow, using their wits to understand and combat an enemy they cannot see.

The film's strongest element is its inventive premise—aliens composed of energy who harvest electrical power and remain invisible until they attack. This creates several suspenseful sequences where characters must rely on unconventional methods to detect their foes. While the ensemble cast delivers serviceable performances, the film truly shines in its visual effects and production design, portraying a hauntingly empty Moscow landscape that adds to the isolation and desperation.

Despite its modest IMDb rating of 4.9, The Darkest Hour offers compelling sci-fi action for viewers seeking something different from typical alien invasion narratives. The 89-minute runtime ensures brisk pacing with minimal filler, and the Moscow setting provides fresh scenery compared to the usual American urban landscapes. Watch The Darkest Hour for its creative enemy concept, atmospheric tension, and solid visual execution that makes it worth viewing for genre enthusiasts.