The story begins with Lincoln showing his parents a trailer for a new movie called The Harvester, where he tries to convince them to let him see it. Rita tells him that the movie is too scary, and refuses to let him see the movie.
That night at the cinema, Lincoln accompanies Clyde to see the movie Blarney: The Luck of the Cretaceous, but instead of seeing that movie, Lincoln enters to the room where The Harvester is being shown. Approximately ninety-seven minutes later, the movie ends and everybody exits without fear of seeing the film, except Lincoln who has become traumatized. He returns home with Clyde and tells him that his parents can't know that he disobeyed them and saw the movie. When he comes home, his parents are decorating the house with Halloween ornaments. His parents then send him to find some pumpkins that are supposedly in different dark and desolate places of the house.
When it's time for everybody to go to sleep, Lincoln is the only one who can't sleep, as he's too afraid to do it. So he stays awake all night, but not before doing some activities to spend time with his sisters, which include:
Asking Lola if she wants to see her pageant videos, but she rejects it and recommends him to go sleep with their parents.
Trying to ask Lana something, only to be stopped by her pets, who all woke up.
Asking Lori for some girl advice until Bobby calls her.
Inviting Lynn to play basketball with him in his room until she falls asleep.
Waking Leni (making her believe that everything is dark because it's Daylight Savings Time) before she goes to school, believing that it really is the next day.
Trying to talk with Clyde, who is too sleepy to talk to him.
Calling Bobby, who is working as a pizza delivery man, to bring him pizza.
The next morning, Lincoln is glad that he survived the entire night without any sleep, but then Mom tells him that she and Dad have talked, and they both agree that he's mature enough to see "The Harvester" film, so they decide to go with him to watch it, much to his and Dad's horror.
When they are at the cinema, Lincoln can't hide it anymore and finally tells to his parents the truth that he already saw the movie, disobeying them at the process and he was too scared to sleep. His parents forgive him, telling that being awake all night was punishment enough for him. After that, Lincoln begs them to see the Blarney's movie, which they accept. The episode ends with Lincoln and his father singing along one of Blarney's songs during the film.
Barney's Great Adventure - The movie "Blarney: The Luck of the Cretaceous" is similar to the 1998 musical adventure film.
Sheela Shrinivas' name is misspelled on the title card. Shrinivas is spelled as "Shrinavas".
In the scene where Lori and Bobby voice chat, Bobby misspelled Lori's name as "Lory" with pepperoni pieces on a pizza. However, Lori doesn't point this out.
When Lincoln brings Leni into the kitchen, her nightgown has straps, and doesn't have the frilled collar.
During the scene, when Lincoln keeps switching on the hall's light switch, it moves down everytime Rita turns the light off; which is impossible in real life, as light switches don't react whenever another one is either switched on or off (if are ones that turns on one light).
Before Lincoln turns off the lights in his bedroom, his poster doesn't have letters, and his clock doesn't have arrows. When he turns off the lights everything returns.
When Lincoln is attempting to wake up Lana, her eyelashes are missing.
When Lynn Sr. drops his soda and popcorn and jumps onto Rita, the popcorn flies everywhere, but when they enter the theater, the popcorn is on the ground on its side with nothing spilled from it.
Also when Mr. Grouse came with a bag of chips, Lynn Sr.'s patches are both missing, his hair from his head is missing, and the sketch lines are on his nose.
After Bobby gives Lincoln the pizza, his eyes are bloodshot, yet when he goes downstairs in the morning, it's gone.
Lincoln being too scared to mention the movie's name.