The families plan an extensive vacation at a pirate-themed family resort in the Caribbean, but a mix-up with the reservations sends them searching for treasure.
Chazz notices that Puppy is acting melancholy and he mistakenly believes it stems from its lack of a name; Howard scares the babies over a coming storm.
Angelica decides that she is a princess and seeks her true, royal parents; Tommy and Chuckie's differences make getting along harder than they thought.
The babies break Angelica's new talking Cynthia doll and the babies see a woman they think is actually Cynthia; Angelica wants to play with older kids.
Arnold's pet pig runs away and needs to be lured home by the alluring scent of "fresh" garbage; Arnold drops his grandfather's watch into an open manhole.
Lisa gets invited to work at an institute and get away from her family; Lori and Bobby worry that dating long-distance is causing them to lose their connection.
The Loud family works hard in order to save up money to go on a family vacation, but when they go on their road trip to their destination, their plans go wrong.
When the older sisters let Lynn into their babysitting club, she shows to be too aggressive; when Ronnie Anne wants to go downtown, her grandparents spy on her.
When the lights go out, the kids entertain themselves by telling parts of a story; Lucy and the Morticians' Club try to thwart plans for a trip to the beach.
Mom tries to convince a newspaper editor that her kids are perfect; when the McBrides go out of town, they hire Luna to cat-sit, but the job becomes demanding.
Lincoln and Clyde overwater Howard's rare orchid; Lynn Sr. is excited to compete on a televised cooking show until he learns he's up against Rosa Casagrande.
Lil and her best friends Anusha and Debs fight to win the coveted trophy at the arcade; Lily is determined to learn the truth about Jack's secret morning life.
Jasper wants to fight crime so bad, he sends Captain Man and Kid Danger to non-criminal activity incidents, but a falsely accused burglar is sent to jail.
After Charlotte is challenged to a fight at school, Captain Man and Kid Danger intervene and attempt to assist Charlotte as she tries to defend herself.
When a dormant volcano beneath Swellview suddenly becomes active, Henry and Ray fear the worst; Piper suspects that she has a dietary intolerance to gluten.
Henry takes trouble home with him due to his superhero life when he brings back a piece of rock from outer space that becomes a lot more than it seemed.
After Ray agrees to allow Henry to fly his helicopter, he begins to get nervous; Charlotte, Jasper, and Piper discover a cotton candy machine in Junk-N-Stuff.
When the Knight Squad's archenemy, Ryker, visits Swellview, Kid Danger and Captain Man take him to Burger Castle where they are tricked into joining with him.
"Swellview's Got Talent," contestants start to lose consciousness, so Captain Man and Kid Danger, with help from Charlotte and Schwoz, try to solve the mystery.
When Captain Man shows up with a new massage chair, Henry, Charlotte and Jasper compete in a series of physical and mental challenges to see who wins the chair.
Kid Danger and Captain Man battle Drex on top of a blimp to stop him from erasing memories of Captain Man and the blimp is aimed for the baby hospital.
Henry is uninvited to a birthday party due to accusations he threw the birthday girl off the roof last year, so he gets Captain Man to help clear his name.
When the Toddler assumes control of Captain Man's Man Cave, Charlotte and Jasper try to find a way to sneak into the Man Cave and free Kid Danger and Captain.
Henry gets grounded after trying to sneak out of the house, and one of his best friends takes his crime-fighting place as Captain Man's substitute sidekick.
Henry's spot on the basketball team is given to the new student at school, who he starts to expect is older than he claims to be and tries to uncover his real a
Henry feels threatened his superhero sidekick alter-ego may become exposed as Charlotte continues to get more suspicious after noticing things about him.
All of the students dread the one day of the year when Mr. Crocker is at his meanest, so Timmy wishes to go back to the teacher's childhood to find answers.
Timmy has Cosmo and Wanda send him into his comic book so that he can avoid his monthly bath, but this makes the Crimson Chin's water-based enemy stronger.
Tommy decides to behave more unruly like Angelica after becoming convinced that his parents stole his stuffed lion; Angelica causes trouble with a magic wand.
The babies see a picture of Dil on Stu's computer screen and mistakenly believe that the infant is stuck inside; Phil and Lil try their hands in the kitchen.
Arnold's attempts to get away from Helga's ceaseless harassment fail when he and the other boarders find that she is vacationing at the beach they're visiting.
Helga ends up revealing all of her personal problems and feelings for Arnold after the school psychologist witnesses her outlandish and brutish behavior.
It is Arnold's turn to pay his oddball cousin a special visit as he ventures to Arnie's countryside domicile; Chocolate Boy tries to kick his nasty habit.
Harold's hatred for school causes him to rebel in order to get himself suspended, but he quickly realizes that the self-imposed vacation isn't one at all.