What can be a better time to enlighten yourselves than during a snowstorm?

An unusually heavy snow in Arcadia leaves everyone trapped and suffering from Cabin Fever. Especially Susurro, who's trapped in the small office with the other members of his squad. Looks like it's gonna be a wild ride for these guys... Also a New Year Special because I'm unsure whether or not I'll finish this by Christmas..

A warrior murdered,and an innocent warrior framed, all near Christmas. Can the Doctor figure out the real killer, before threats from his race to freeze TimeClan straight in time?