在续集中，亲爹沃尔伯格和继父法瑞尔决定把他们的分歧放在一边，携手为孩子们打造一个完美的圣诞节，这时候，孩子们的两个爷爷也到了（也就是两个爸爸的爸爸）。这一次，性格好强的爷爷吉布森遇到了极度敏感的爷爷利高特，一场大战也将掀起。

　　Katie goes to great lengths to appease Principal Ablin in order to ensure Taylor graduates high school; Greg finishes writing the final chapter of Lonnie's book; Oliver is devastated to learn Cooper's family will be moving out of Westpor…