It's Christmas in Shieldinch, but Kelly-Marie isn't feeling particularly festive as Martina tightens her grip on Alex and Chrome. When things get out of hand, Kelly-Marie decides it's time to make a long overdue call for help. But will it be heard? Meanwhile, Gary and Caitlin put their differences aside as the McLeans celebrate their first Christmas in Shieldinch, and Bob makes Angus an offer he cannot refuse.