After a deadly viral outbreak transforms the human population into violent, zombie-like creatures, the United Kingdom plunges into chaos. In a desperate attempt to find a solution, a team of eight Special Forces soldiers is deployed on a dangerous mission to retrieve a scientist believed to hold the key to a potential cure. The team must navigate through abandoned cities and treacherous landscapes, battling hordes of infected and hostile survivors along the way. Each member of the squad grapples with personal demons and the escalating stakes as they press forward with their mission.

As the soldiers struggle to survive, they encounter various factions of survivors, some of whom have formed their own militant mini-societies. Trust becomes a scarce commodity as alliances are tested and moral dilemmas arise. The team faces a series of harrowing and action-packed encounters, pushing their limits and forcing difficult decisions about loyalty, sacrifice, and humanity. The true nature of their mission and secrets about the virus are gradually revealed, setting the stage for a climactic confrontation. The soldiers must confront not only the external threats but also the internal conflicts tearing them apart as they inch closer to their objective.