28 Weeks Later (2007)

Six months post the initial epidemic, the relentless rabies virus has decimated the entire British Isles. The U.S. military, deeming the threat extinguished, sends troops to reestablish order and initiate reconstruction. British refugees cautiously reclaim their homeland, but one among them harbors a perilous truth: the virus hasn't vanished, and its resurgence is deadlier than ever before. A great sequel that you can't miss.