Infected (2013) on Netflix

The Zombie Apocalypse has begun, spread across the globe in a matter of days the undead soon reach the British Isles and overun the Capital. Army blockades are struggling to contain the outbreak, evac centres are hastily set up across the south of England but as the containment fails and the country is engulfed by the undead, a disparate group of survivors find themselves trapped inside a school. With no help of rescue and the undead hordes growing by the day, how and what will these people do to stay alive.