Set in the present day, Survivors focuses on the world in the aftermath of a virulent disease that scoured the planet, wiping out 99% of the human race. Only a lonely few are left to start over in a devastated world where everything that was once safe and familiar is now strange and dangerous. A bewildered but resilient group of survivors is led by Abby Grant, a woman whose strength comes from a burning need to find out if her young son is still alive. Other members of the group include Greg (a good man who hides the pain of his past), Anya (a doctor who has seen too many people die) and Al, a former playboy who becomes surrogate father to streetwise urchin Najid. Then there is Tom, outwardly handsome and charming, but actually a dangerous and ruthless man who, unbeknown to the others, was a high-security prisoner before the virus hit.