With the recently named Alien on the mend Julia, Johnny, Tabby and Finn turn their attention to helping a new endling that can't survive in the cold. But the creature's unique ability to hide makes saving it nearly impossible.

Tabby, Johnny, Julia and Finn race to save a trapped endling while a seemingly endless stream of drones try to capture it. Unhappy with her drones' progress, Hewes and her team arrive to finish the mission themselves.