Tuck, a little pig, doesn't want his younger sister, Bunny, to mess up the haunted house he's building in their garage, but he doesn't realize that her help could lead to a really good scare.
While traveling on the train to San Francisco with his cousin Olivia's owl, Nate the Great and his dog Sludge must use all of their detective skills when the owl suddenly disappears.
Ingenious eight-year-old Owen wants to make money for the things he absolutely needs, such as plastic vomit, but he tries to come up with some alternatives to earning an allowance, which sounds like too much work.
Second grader Owen Foote is looking forward to spending time with his friend Joseph in their tree fort, until some bullies visiting his neighbor, Mrs. Gold, threaten to wreck the fort.
George is lucky to arrive at the library just in time for story hour. But it's not easy for a little monkey to sit still too long. From selecting books to getting his very own library card, George's day at the library makes reading fun,
Cora, a castaway child who was adopted and raised by African elephants, persuades her elephant mother and father to travel with her to San Francisco in search of her roots.
While waiting for the man with the yellow hat to buy train tickets, Curious George causes trouble by mixing up numbers on the schedule, but he makes up for it when a little boy's toy rolls toward the tracks.