Twenty-eight days after a killer virus was accidentally unleashed from a British research facility, a small group of London survivors are caught in a desperate struggle to protect themselves from the infected. Carried by animals and humans, the virus turns those it infects into homicidal maniacs -- and it's absolutely impossible to contain.
We see riots, protest, police brutality and a man getting hanged by a mob. Activists raid a lab and free some lab chimps. One of the chimp attacks and bites a woman - infecting her. The woman vomits blood on her associate and then attacks the scientist.