Human society 20 years later is facing an unprecedented danger of extinction - all humans have lost their fertility, while Eastern Europe and Africa have been torn apart, and the population has migrated to wealthy countries such as the UK. However, in the UK, people are in chaos and panic. Everyone is anxious and violent about the coming of the end of the world. African girl Ken (Claire-Hope Ashitey) illegally immigrated to this country, but what is exciting is that she is pregnant with a child. In order to preserve the only bloodline of mankind, policeman Theo (Clive Owen) and his ex-wife Julie (Julianne Moore) decided to take Ken out of the country safely at all costs, but the rain of bullets made it difficult for them to move forward. During the escape, the baby was born in a refugee camp. In the face of knives and guns, preserving the last hope of mankind became the only belief in Theo's heart.