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.

In late 1967, a young orphaned boy goes to live with his loving grandma in the rural Alabama town of Demopolis. As the boy and his grandmother encounter some deceptively glamorous but thoroughly diabolical witches, she wisely whisks him away to a seaside resort. Regrettably, they arrive at precisely the same time that the world's Grand High Witch has gathered.

Kate Pierce is reluctantly spending Christmas with her mom’s new boyfriend and his son Jack. But when the North Pole and Christmas are threatened to be destroyed, Kate and Jack are unexpectedly pulled into a new adventure with Santa Claus.

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.

Lincoln and the Louds are ecstatic to welcome their new Gran-Gran, Myrtle, into the family with a tropical wedding celebration; but the festivities are cut short when an old nemesis from Myrtle's secret agent past appears on the island.