While "28 Days Later" traveled from virus-devastated London into a countryside just as dangerous, the impressive, jolting "28 Weeks Later" reverses that transit --- and pretty much destroys what's left of England's capital once it returns there. Bloodier and more action-filled than the original, "Weeks" nevertheless stays faithful to the grim, grimy tone director Danny Boyle established in his 2002 film with its haunting shots of a metropolis turned into a tomb.

28 Weeks Later Credit: Fox Atomic

A prologue unfolds in the first weeks of England's contamination by the so-called Rage virus, which turns the exposed into red-eyed, bloodthirsty, fast-moving zombie-ish maniacs who want one thing only: to rip their teeth into the flesh of the still-healthy.

At a barricaded farmhouse, a group of survivors, including spouses Don (Robert Carlyle) and Alice (Catherine McCormack), are preparing an early-evening meal from their stores of canned goods. Then somebody knocks on the door. ... And, in the first of many unnerving action sequences, it's clear that the infected are as scary in full sunlight as they are at night.