We never saw it coming. Brace for the Arrival.

Paramedic Maya Talbot knows her unhinged, ex-husband is gunning for custody of their children. When she drops off Aiden and Laura at Grandma's for a weekend visit, Maya assumes they'll be safe. However, nothing could have prepared her for the chaos created when a strange obelisk rises from the ground and generates an impenetrable dome over the city. Riots, looting, and violence run rampant. The situation in Nashville deteriorates-and then they arrive, thrusting Maya into a desperate race to escape the dome and save her children from the dangers on the ground-and from above. When darkness falls, the intergalactic visitors manifest our worst fears and threaten the future of humankind.