Ty and Jen find new technology in the hands of an unprincipled crew, used to control people's emotions.
All the negative ones, like anger, hate, and fear, are aroused to turn people into tools.
These guys don't care about the consequences for others, only their own gain.
There have to be countermeasures.
With help from surprising and very different sources, answers are found, perhaps.
Along the way they discover each other.