On the eve of the Feast of the Three Kings, Spain is hit by an unprecedented snowstorm. Traffic is paralyzed, and kilometer-long traffic jams line the highways. A company of armed youths decides to take advantage of the situation - to attack a van of cash collectors and escape before the police arrive. The bandits are not yet aware that two law enforcement officers are in the jam with them - Leo, an elderly cop disillusioned with life, and Mikaela, a Civil Guard trainee.