Following the deadly events at home, the Abbott family must now face the terrors of the outside world as they continue their fight for survival in silence. Forced to venture into the unknown, they quickly realize that the creatures that hunt by sound are not the only threats lurking beyond the sand path. The family must rely on each other and use their knowledge of how to keep quiet to remain safe as they search for a new sanctuary.

With the creatures still a constant danger, the family encounters other survivors. Trust becomes a vital commodity as they realize that not all remaining humans have their best interests at heart. Their journey leads to unexpected allies and challenges, pushing their ability to adapt and survive to the limit. Communication and courage become paramount as they encounter new environments and threats, seeking hope for a safer future.