Summer and Mason take their upbeat and feelgood Canal Boat Café to London for Christmas, with unexpected results.
Summer is so in love with her boyfriend Mason and dreams of taking the next step with him, but is Mason ready too? When her friend Claire offers Summer a chance to come to London with her canal boat, Summer thinks this will give them a chance to find out, and they embark on a magical journey on the canal all the way to the scenic beauty of Little Venice. But will it be plain sailing all the way?
Summer and Mason find themselves unexpectedly spending the entire Christmas holiday in Little Venice when the canal freezes over. But their idyllic winter excursion is thrown into turmoil when an unexpected visitor appears on the scene. Are Summer and Mason facing the Big Freeze in more ways than one? Or will this be one Winter Warmer that they’ll never forget?