It's Christmas Eve and Mami has bought a delicious roast for a Christmas feast. But it’s too big to fit in the oven! Jose and Papa need to find an oven big enough to cook Mami’s roast. As they walk from door to door through their apartment building, no one seems to be in the Christmas spirit. So they head down the street to find someone willing to help, and only when they do, lo and behold, the scent—the itself magical smell—of dinner begins to spread, and holiday cheer manifests in ways most unexpected.