It seems that their main quarry, that they planted for the hunt, has been stolen. They want it back. Lyons is convinced the Preds are after him and Joanna, which isn't the case. This gets bad real fast, as Peter, as a dataDyne employee, usually carries enough firepower to show Dutch's team a thing or three. As you can imagine, the body count for this rates an eleven out of ten.
Nobody knows or is telling.
The above mentioned challenge that the Pred poses to or belief system and social conditioning. This approach requires immense literary talent and an overwhelming imagination to create and substantiate the Hunter culture, society, language, behaviour, etc. In essence the writer has to outstep his Humanity and look through much different eyes- a massive challenge that only a few of us can attempt to overcome.