Billy Wickman

A familiar face returns to the 2nd Mass, but his intentions remain unknown. Meanwhile, a skitter is captured and brought back to the camp as a prisoner, and Hal bonds with Maggie as she begins to open up about her past.

While on patrol together, Ben and Hal try to help a young boy and wind up having their bikes stolen. The hunt to recover them leads them to the discovery of something much bigger. Also, Matt is put in danger, and Weaver is reunited with a family member.

Tom captures another hostage and Ben is placed in harm's way by someone who he thought he could trust. When members of the 2nd Mass are trapped in the basement of a building, the situation takes a turn for the worst when they find themselves faced with a new enemy.