POD's - strange alien spheres hover menacingly in the sky, zapping anyone who ventures outside. Will is 15 and stuck in his house with his OCD dad. They're running out of food...Megs is 12, alone and trapped in a multi-storey carpark. The hotel next door is under the control of dangerous security staff, but Megs has something they want, and they'll do anything to get it...When the aliens invade, the real enemy becomes humanity itself. What would you do to survive?