When twelve-year-old Josephine falls through a worm-hole in her garden shed into another time and place, she realizes the troubles she has at home are minor compared to what she has to tackle now in the world where she has landed.

The oldest Mariss brother, fourteen-year-old Dewey, attempts to be the "embodiment of responsibility" as he juggles the management of the family's bicycle repair business while sharing the household and farm duties with his siblings after a sudden energy crisis strands their parents far from home.

Twelve-year-old Della Kelly of Maryville, North Carolina, tries to come to terms with her mother's mental illness while her father struggles to save the farm from a record-breaking drought.

Since her father's death, Cat has taken care of her brother, Chicken, for their hardworking mother, but while spending time with grandparents they never knew, Cat has the chance to be a child again.

Sixteen-year-old Gravity Delgado has been breaking records and competitors since she started boxing with a legendary coach at age twelve, and now will reach the Olympics if her home life and romance do not distract her.

Zach, Alice, and Poppy, friends from a Pennsylvania middle school who have long enjoyed acting out imaginary adventures with dolls and action figures, embark on a real-life quest to Ohio to bury a doll made from the ashes of a dead girl.