On a visit to a seaside town in Australia, fifteen-year-old Sam meets Annabel, who works at the local museum. Annabel's interest in history is infectious, and Sam soon finds himself eager to hunt for the remains of a boat called the Mahogany Ship—a shipwreck sought after by many. When a storm creates an erosion hole that exposes a structure, Sam and Annabel are convinced it's the fabled ship. Soon all of the museum staff are at the erosion site to check it out. But the same storm also destroys the museum's power; someone knows the alarms aren't working and steals the museum's most treasured artifact, a large porcelain peacock worth $4 million. As Sam and Annabel search for the thief, they realize there may be a link between the fabled shipwreck and the recent theft.
Thirteen-year-old Nate needs a break from looking after his newly disabled mom. One day when his mom thinks he's at a cross-country meet, he goes to the mall with a friend he's forbidden to have contact with. At the skate shop he sees a new board he can't afford but has to have, and Nate gets talked into running a scam. It turns out Nate looks a lot like a teen TV star filming in the area. So he and his buddy get girls to pay cash to be extras on set. It's all fine until Nate meets a girl he really likes. Nate knows he has to tell her the truth, but he's not sure he has what it takes to come clean.
Even though he's secretly terrified of deep water, and all the scary things that swim below, Tate wants to shake his boring reputation, and he agrees to travel with his class up the Amazon River to help build a village school. He has his fingers and toes crossed that he won't see any giant snakes or hungry piranhas. But there are even scarier things than anacondas lurking in the jungles of South America, and Tate soon learns of the legend of El Tunchi, a vengeful spirit that terrorizes those who harm the rainforest. When creepy things start happening and Tate keeps hearing El Tunchi's haunting whistle, he's sure the group must have angered someone. Or something. He and his friends need to figure out a way to make amends and get out of the jungle alive.
Clay would much rather work as a lifeguard at the beach than at Safari Splash, the new water park in town. He's certain the summer will drag along, despite his position at the Boa, the park's fastest slide. The summer job starts to get interesting when he learns that someone has been wandering the park in a lynx costume, scaring the staff. When forty thousand dollars is stolen from the till, and his friends are under suspicion for the theft, boring is starting to look good. But Clay is certain that the mask and the thefts are connected, and he's determined to solve the crime.
Angus and his best buddy, Shahid, share a love of science and their robot, Gordon. But recently, the artistic Ella Eckles has had a peculiar effect on Angus. When a stink bomb at the school provides a chance for him to talk to her, he claims to share her interest in reading facial expressions and declares his ambition to become a crime-solving mentalist. He impresses Ella by identifying the stink bomber, but fails to mention he witnessed a scrawny kid setting off the bomb. When Ella's treasured sketchbook is stolen, she asks Angus to find the thief. Shahid thinks Angus should confess that he's not a mentalist, but Angus is certain he can learn to read people and recover Ella's sketchbook. He asks Shahid to help him investigate the suspects: Gaga Girl; the art teacher, Mr. Wilder; and finally, "scrawny kid." Equipped with rearview sunglasses and an informant who lurks in the washroom, the duo bungles their way through a series of encounters that alarm Shahid and provide Angus with some unfamiliar exercise.
Fifteen-year-old Christine is visiting her eccentric great-aunt in historic Witcombe, where a pickpocket has been victimizing tourists. Aunt Maude owns an antique store and also runs the town’s ghost walk, which gives Christine the opportunity to meet local characters and visitors, including a mysterious young man who seems to know far too much about the crimes. When the pickpocket targets Aunt Maude’s store, Christine is determined to find out who is behind the thefts. Her search takes her through the nooks and crannies of the quaint town full of stories, and she unearths more than one surprise.
Fourteen-year-old Preston Craft is organizing a film festival for his school's film club. When one of the films goes missing two days before the festival begins, Preston is convinced it was stolen and is determined to get it back. The only indication of the theft is a suspicious shadow that Preston noticed right before he discovered the film was gone - but Preston is legally blind and no one quite believes him. However, not unlike the gritty private eyes in the classic black-and-white films he adores, Preston refuses to give up. Can he solve the mystery based on such a shady clue?