Becca tries to convince Connor, Nadine, and Maya to leave the house to no avail. Jason discovers Fia's secret plan. Becca has an unsettling run-in and learns that there might be another threat to her in the house. After doing some snooping, Becca finds something terrifying hidden under Fia's bed. Becca tries to escape but she is thwarted by Isaac, leaving the kids to come up with another plan.