Fitzpatrick, former Commander of Earth Navy, joins with Will Hawkins, captain of The Jersey Gold, to extract a rescue team from an alien facility.In this installment, the Lemylatians, blind aliens who utilize sonar, were trying to rescue the Yvlekesh, grasshopper-like alien scientists.They are pinned down by automated defenses and send an S.O.S., which is picked up by The Bureau.