Ada Twist is a very curious girl who shows perseverance by asking questions and performing experiments to find things out and understand the world.

Valley Girls Chantele and Brittany, under the influence of a mad scientist's evil potion, hatch a plan to take over the city by kidnapping the mayor's wiener dog, Schnitzel, but Melvin and his partner in uncrime, Candace, are on their trail.

Sam, Lucy, and Antonio have a new substitute teacher, who happens to be the great-great-grandson of Orson Eerie, the evil scientist whose spirit possesses and infects their elementary school--and the friends are afraid he may be trying to bring Orson back to life.

"Meet Jack and Max Stalwart, Code Names: Courage and Wisdom. Jack and Max are ordinary kids who become secret agents by night, thwarting evil and saving priceless treasures as they solve mysteries around the world. Destination: Brazil. Secret agents Jack and Max Stalwart are sent to the Amazon jungle to investigate the disappearance of an important Global Protection Force scientist. Soon, they discover that the scientist's disappearance is no accident....

For the first time in years Eerie Elementary is planning a science fair, which may not be a good idea in a school which is alive and out to get the students--but when Sam and his friends find a book of experiments that contains all of Orson Eerie's notes, it may turn out to be the key they need to finally understand the mad scientist.

Dr. Clock invents a time machine, but his trip back to the era of the dinosaurs does not turn out as he had expected.

Riley helps save a pod of dolphins that become trapped in a lagoon in Tahiti.

When the mad scientist Dr. Hazel Nutt begins creating monsters again, the angry villagers of Hamburg-with-Ketchup storm her laboratory but are in for a pleasant surprise.

Dr. Avril Crump, a chubby, balding, and lonely research scientist at Leviticus Laboratories, befriends three strange clones that were created during a failed laboratory experiment, but when she discovers a plot to destroy them, she embarks on a dangerous mission to save the only friends she has ever known.