It's 2018 and Tori's managing. Okay, so London is under twenty metres of snow, almost everybody has died in a pandemic or been airlifted south, and the only animals around are rats. Plus her boyfriend never returned from going to find his parents a year ago when the snow began - but she's doing fine. Really.

She lives in an apartment that's luxurious, if short on amenities, in a block which used to be home to rich City bankers. A handful of fellow survivors are her friends, and together they forage for food and firewood, have parties once a month and even run a book club. The problem is they have no long-term future; eventually provisions will run out. Tori needs to find transport to make the two-thousand-mile journey south to a warm climate and start again.

Enter Morgan, a disturbingly hot cage fighter from a tougher, meaner world where it's a mistake to trust people. He's on the run from the leader of the gang he used to work with. And he has a snowmobile.