Nikki Crandon is one of the biggest pop stars on the planet. Whether she's singing the National Anthem or promoting her latest album, everyone knows who she is—none more so than New Jersey high school basketball coach and widower Chris Mitchell, who was Nikki's first love in high school. When Chris' 10-year-old daughter Sophie finds out her dad still has feelings for the singer, she takes matters into her own hands. With her 8-year-old brother Jackson in tow, Sophie succeeds in reuniting the two. But when a misunderstanding and the growing glare of the public spotlight threaten Chris and Nikki's happiness, one can only wonder: will fame get in the way of a Merry Christmas?

在系列终章中，幸存者们将面对蒙面陌生人的新威胁。随着秘密浮出水面，现实与危险的界限逐渐模糊，他们的生存之战也愈发凶险。

　　本片讲述的是三位主人公，6岁的康诺、艾玛亚和葛瑞，在白天的时候，他们就像普通小孩一样去上学。但当这个城市发生危险时，这群充满好奇心和正义感的孩子们便会在夜里穿上睡衣，并激活他们的动物护身符。神奇地变成动感超级英雄，猫小子、猫头鹰女和飞壁侠，成为睡衣小英雄。他们一起对抗罗米欧、月之女和夜幕忍者这群夜间坏人们，阻止他们一系列的破坏行为。