Left alone for the first time on the island he calls home, Simon is looking forward to a day of personal indulgence. His sister Ellen only wants to make sure they get their chores done. Their parents are busy trying to convince the government not to close the lighthouse that the family operates, and it's up to the kids to make sure everything runs smoothly. Neither Simon nor Ellen is prepared for the mysterious and potentially dangerous visitor who brings with him an unexpected storm and a riddle that may lead to treasure - treasure that could help them save the lighthouse. Simon and Ellen have to work together to solve the riddle before the stranger or the weather destroys their chances.
Jessica loves her yearly backpacking trip with her father, but this year everything has changed. This year Jessica has to share her vacation with her new stepmother and her spoiled new stepsister, Amy. Jessica tries to salvage her holiday by sneaking off for a day hike alone, but Amy follows. Jessica is certain that Amy will ruin the day. Amy rises to the challenge of the rigourous hike and Jessica learns that Amy is not as spoiled as she thought. When Amy is injured and night falls, Jessica must face the challenge of hiking through bear country in the dark.
In most ways, Poe is like the other kids in his school. He thinks about girls and tries to avoid too much contact with teachers. He has a loving father who helps him with his homework. But Poe has a secret, and almost every day some small act threatens to expose him. He doesn't have a phone number to give to friends. He doesn't have an address. Poe and his father are living in a tent on city land. When the city clears the land to build housing, Poe worries that they might not be able to find another site near his school. Will Poe have to expose his secret to get help for himself and his father?
Maddie has big-city dreams, and this summer she's found her chance to visit New York. An art magazine is holding a portrait painting contest, and the first prize is an all-expenses-paid trip to the Big Apple. Maddie plans to win, but her mother has different plans for her: a mother-daughter adventure in organic farming. Maddie is furious. How will she find an inspiring subject for her portrait amid the goat poop and chickens? And worse, her new age mother's attempts at pig reiki are an embarrassment. But Maddie befriends the farmer's daughter, Anna, and between dodging her mother and doing her chores, she finds the perfect subject for the portrait contest.
Safira doesn't believe in ghosts, but the girl in her cabin at camp was not a living person, so what was she? Her friend Trinity is convinced Safira's seen a ghost and sets out to discover who the ghost girl is. Safira is too busy dealing with her family to help solve the mystery. Safira has never gotten along with her sister, Mya, and now that Mya's pending marriage dominates the family, there seems to be no hope for friendship between them. But when Trinity discovers the death of a girl named Myra, Safira starts to wonder if the ghost-girl has an important message about her own sister.
Liza, determined to prove that her mother's boyfriend is no good, starts researching the oil company he works for. Liza discovers a lawsuit against the company for compensation that is long overdue to Guatemalan farmers. She starts a group at school called GRRR! (Girls for Renewable Resources, Really!) and launches an attack on Argenta Oil. As her activism activities increase, her objections to her mother's boyfriend become political. She is learning to separate the personal from the political, but when her mother discovers her plans for a demonstration outside the Argenta Oil head office, the two collide in ways Liza least suspected.
Sam's grandfather vanished from his life the day Sam's father was buried. Now, ten years later, Grandpa Max wants to make amends. He sends letters that lead Sam on a scavenger hunt. Sam follows his grandfather's bizarre instructions though he's still not ready to forgive. To alleviate his anger at his grandfather, Sam turns to his favorite stress release: climbing onto roofs and leaving his tag, a spray painted symbol for Aquarius. When he gets caught by an elderly couple, Sam learns a valuable lesson about forgiveness. He's ready to forgive his grandfather, but is he too late?
Rufus and his sister Alexa hate each other at the best of times. When Rufus's friend Phil manages to hypnotize Alexa, Rufus is ready to enjoy the power. They begin by ordering Alexa to be kind to her parents and Phil. The plan backfires when Alexa sweetly suggests canceling an expensive family vacation in favor of a week at home playing board games. Then Alexa turns on the charm with Phil and suddenly Rufus has to deal with a lovesick amateur hypnotist. Rufus is certain it can't get any stranger until Alexa, still in her hypnotic state, is kind to the brother she's always hated and Rufus is more confused than he's ever been.
Once again Callie is forced to take part in her mom's latest crusade. They head into ranch country to camp -- bloodthirsty mosquitoes, stinky outhouses and all -- at a protest to save a rural school. Callie's grandmother shows up with her biker buddies and the singing grannies. Callie hates camping and wants nothing to do with the protest. To make matters worse, Callie's only possible ally, her cousin Del, is mad at her. The last time Callie visited, she was thrown from Del's horse, Radish. Callie claimed the horse was vicious and now Del's parents are forcing her to sell Radish. Callie wants to help her cousin, but she's terrified of the horse. Del is just as tenacious as the rest of Callie's family, and Callie is forced to admit that she's not going to be allowed to go home until both the horse and the school are saved.