Part 4/8:
As the plot unfolds, Susan realizes that her creation has persisted beyond its intended lifespan, no longer a transient solution but a potential harbinger of doom. A series of ominous events lead her and Peter to explore the subway system, where they stumble upon a hidden underground network that houses a new breed of Judas bugs—massively evolved and dangerous.
The horror intensifies as Chewy goes missing, prompting his father, Manny, to take matters into his own hands. This path intertwines with Susan and Peter's investigation, highlighting an escalating sense of urgency and tension.