Abby stumbles across a community that could hold the key to everyone's future. The last surviving member of the government, Samantha Willis, has set up a community that still boasts light, hot water, food, and power. Abby and Samantha hit it off immediately, but Abby's illusions are shattered when she sees the lengths Samantha will go to in order to maintain control of her fledgling community. Meanwhile, Greg and Tom are out searching for supplies when they encounter a family who have successfully sheltered from the virus. When the daughter of the family reaches out to Tom and Greg, they are faced with a terrible dilemma, as any contact with them could kill the family.
Elenco: Max Beesley , Zoe Tapper , Paterson Joseph , Phillip Rhys , Julie Graham , Robyn Addison , Nicholas Gleaves , Nikki Amuka-Bird , Chahak Patel , Freema Agyeman , Shaun Dingwall .