When a team of mercenaries breaks into a wealthy family compound on Christmas Eve, taking everyone inside hostage, the team isn’t prepared for a surprise combatant: Santa Claus is on the grounds, and he’s about to show why this Nick is no saint.

Lucas, a diamond trader who travels to Saint Petersburg to arrange a sale, discovers that his Russian business partner has left his hotel and gone to a small Siberian village, so Lucas also heads there to try find him.

In the final days of WWI a shell-shocked soldier must lead a mission deep beneath the trenches to stop a German plot that could turn the tide of the war.