Lincoln Loud gears up for the ultimate Christmas, until he finds out that most of his sisters have plans to be elsewhere for the big day. Determined to remind his family that they all need to be together, Lincoln and his best friend Clyde McBride embark on a mission to preserve the family’s holiday traditions.
A female serial killer who killed four young girls is sent away to prison, but a fifth victim escaped with her life. Twenty years later, the killer escapes and begins hunting for the one who got away.
Lincoln and his best friend, Clyde, struggle to decide whether to participate in the Loud family Spooktacular, attend their friend, Xander's, party, or go trick-or-treating on Halloween.