An American movie with a red cross on the cover about a city that's been closed off and the people inside are mutated

The Invasion of Armageddon: is a 2008 science fiction film directed by British director Neil Marshall. The story is about in 2008, a kind of skin contact can be infected by a deadly virus in the United Kingdom, the British government agencies can not do anything about it, in order to prevent the spread of the virus and jeopardize the survival of mankind, the government resolved to quarantine the Scottish region. The main character, however, needs to find hope for survival in this desperate situation.

Plot: 2010, Glasgow, Scotland. An unknown, horrible virus spreads unchecked, infecting the whole body covered with herpes, festering and pus, and ultimately dying a painful death in torment. Due to the lack of medical equipment and vaccines, the death toll is in the thousands in just one week. In an attempt to contain the spread of the virus, the British government placed a complete blockade on Scotland in an attempt to isolate the virus completely. After this, the rest of the planet was left in peace for nearly three decades, but sometime in 2035, the deadly virus broke out again in London, England.

Just as government officials were getting antsy, they got some exciting news. A satellite photo showed signs of life in a quarantine zone in Scotland. In order to find a way to fight the virus, the government sends a scientific team headed by Eden Sinclair (Rhona Mitra) into the quarantine zone. Eden escaped from the quarantine zone, but when she returns to her homeland, which she has been away from for nearly thirty years, she realizes that it has been transformed into a battlefield of flesh and blood, where the weak are preyed upon by the strong and the brutal are brutalized by the cruel.