Ginger comes face to face with the killer, and has to fight to save the machine and her life.

Ginger is desperate to warn Cat about Terry's machine before it goes public, but first she must confront an old nemesis.

As the gang race to get to the State Science Fair Finals, Ginger reveals a secret, but also realises she's made a very crucial oversight.

Ginger and her allies are at last ready to test the machine.  Are they prepared for the results?

Mr Bell threatens to pull the plug on the science fair, and an unlikely ally fights Ginger's cause

Ginger's interrogation of Mr Bell raises more questions than answers, and the Janssons discover another intruder.

Ginger quizzes Mr Bell regarding his motivations, and doubt is cast upon the true identity of Jim.

Ginger is dismayed to learn that Mr Janssons secret power source is anything but discreet.  But that becomes the least of her worries, as her mystery pursuer finally tracks her down.