Megan discovers a large dark blue triangular spaceship that she can transport out of fourth-dimensional space into three-dimensional space. Using this craft, she takes May and Brianna and sets out for another solar system where they rescue a small alien woman, Xeba, from being eaten by a huge dinosaur. Megan wonders why this woman and her people live like primitives when they are obviously much smarter than cave people. Simon Banister's not behind bars yet and Megan wants to know why. To complicate things even more, he's learned who Megan is and how she's been messing up his plans. He hires a team of former commandos to kidnap Megan and her family. They just missed catching Megan and little Xeba by a few seconds. Now Megan and her friends must get the Martin family home safe but it is not as easy as she hoped it would be.