Tertiary Subspace Domain

A remote pocket within subspace's infinite domains pulses with tetryon emissions that tear open rifts aboard the Enterprise, starting in Cargo Bay Four. Aliens abduct crew members like Riker here for their experiments, pulling victims into this hidden alien workspace. Riker volunteers to enter, carrying a homing device for a graviton pulse counterattack, as the crew debates neuro-stimulant risks and return uncertainties amid the domain's lethal pull.