The alien drop creatures on earth to wipe out humans

In a world devastated by monstrous creatures known as Reapers, humanity has been forced to seek refuge in high-altitude sanctuaries above 8,000 feet. Will (Anthony Mackie), a single father, embarks on a perilous journey with scientist Nina (Morena Baccarin) and friend Katie (Maddie Hasson) to retrieve medical supplies for his ailing son. Their mission takes them into the heart of danger as they confront the Reapers and uncover secrets that could change the fate of mankind