The film opens with a direct continuation of the original virus timeline. It has been 28 days since the initial Rage Virus outbreak in the UK.
They reach a stadium designated as a last-stand evacuation point. However, the military has already abandoned it. As a helicopter arrives to rescue Scarlet, Doyle, and the children, a mob of Infected breaks in. Doyle sacrifices himself, holding a door shut long enough for the others to escape. He is torn apart. Act Four: The Final Escape & The Nightmare Conclusion The Tunnel to the Mainland: Scarlet, Tammy, and Andy escape into a dark, car-tunnel leading to the mainland. They are pursued by Infected Don. In the darkness, Scarlet is pulled away and killed by Don. The children run. 28 Weeks Later Movies
Scarlet realizes the children are their only hope (Alice’s offspring may also carry immunity). She, Tammy, and Andy flee into the subway tunnels just as the bombing begins. Meanwhile, a sniper named Doyle (Jeremy Renner) , disgusted by the "kill everyone" order, abandons his post to help them. The film opens with a direct continuation of
A lone U.S. helicopter, pilot unknown, lands on the mainland side of the tunnel. Tammy and Andy run for it. They climb aboard. As the helicopter lifts off, they look down to see hundreds of thousands of infected pouring out of the tunnel and spreading across the green fields of mainland Britain. The Final Shot & Coda The helicopter flies over the English Channel toward France. The pilot radios for a status update. However, the military has already abandoned it
A moment of silence. Then the radio operator says the final, terrifying line:
The children bring Alice to the District 1 medical center for help. As Scarlet examines her, Don arrives, now fully infected but still conscious. He watches as soldiers try to restrain Alice (who is terrified, not violent). In a fit of rage, Don attacks a soldier, vomits blood into the soldier's eyes , and instantly turns into an Infected. The containment fails. Within minutes, the tightly packed Green Zone is overrun. Act Three: The Fall of London Code Red: General Stone orders "Code Red"—exterminate all civilians and infected in District 1 to prevent the virus from spreading. He locks down the zone and orders napalm strikes.