Kate and her grandfather use one of his inventions, combining psychic power with quantum physics, to travel faster than the speed of light on a mission to save the sun from a premature death.

When she joins her father and several others investigating a strange whirlpool and possible sunken treasure ship off the coast of Baja California, thirteen-year-old Kate is drawn into a centuries-old conflict between Merlin and the evil Vagar.

The twins have to find out who wants to stop their dog Clue from performing as a circus clown.

Twins Mary-Kate and Ashley investigate when they visit a zoo where the animals act in a very strange manner.