For Fin, it's just like any other day - racing for the school bus, bluffing his way through class, and trying to remain cool in front of the most sophisticated girl in his universe, Lucy. Only it's not like any other day because, on the other side of the world, nuclear missiles are being detonated.

When Fin wakes up the next morning, it’s dark, bitterly cold, and snow is falling. There’s no internet, no phone, no TV, no power, and no parents. Nothing Fin’s learned in school could have prepared him for this.

With his parents missing and dwindling food and water supplies, Fin and his younger brother Max must find a way to survive all on their own.

When things are at their most desperate, where can you go for help?