The girls try to stop an intruder from stealing a prototype from Space Inc. When things go awry, McKeyla begins to doubt her sleuthing skills.

McKeyla, Bryden and Adrienne discover a dark side to the nanotechnology prototype. Cam and Ember make a brainy new friend at Destination Mars Camp.

McKeyla homes in on a surprising new suspect: Camryn's dad! Meanwhile, Ember and Cam wonder if fellow camper Gordon is up to something.

Devon uses art to help Bryden and Adrienne work through their differences. McKeyla has a difficult talk with Kyle about their relationship.

The girls finally learn who's responsible for stealing the prototype. But is it too late to stop the evil mastermind's plot?