Sam and her brother Luke are out too late in London, caught between a rock and a cold place. On one side, a loan shark demanding they repay their debt by stealing a magical artefact. On the other, the icy fury of its original owner - Jack Frost himself.
Scrambling away into the night, they find themselves prey in a desperate chase, caught in a hellish supernatural snowstorm.
A chill hit the air, a hulking figure emerged --
AND IT SNOWED.