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.
In a remote countryside safe house, a small group of survivors hides, including Don (Robert Carlyle), his wife Alice (Catherine McCormack), and a younger couple, Jacob and Sally. They are running low on food. 28 Weeks Later Movies
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. The film opens with a direct continuation of
A U.S. Army helicopter arrives, gunning down the infected. The pilot, seeing Alice is still moving, hesitates to kill her. As the infected feast on her, she is left for dead. Act One: The Rebuilding (28 Weeks Later) 28 weeks after the initial outbreak. The U.S. Army-led NATO forces have successfully cleared the infected from the Isle of Dogs in London. The mainland is still a quarantined dead zone. The U.S. Military, under the command of General Stone (Idris Elba) and scientific advisor Scarlet (Rose Byrne), begins a controversial Repopulation Program — bringing British refugees back to a heavily fortified "District 1." They are running low on food
"...God help us all."
Andy trips. Don looms over him, ready to infect his own son. But Andy, in a moment of desperate fury, stabs Don in the eye with a thumb. The infected father recoils and is then run over and crushed by an escaping military jeep driven by a dying soldier.