When his teenage daughter doesn't return home after a party, Tom Delaney anxiously combs the neighborhood and learns her boyfriend is also missing.

An anonymous tip leads to a frenzied chase -- and another puzzling clue. Zoe draws up a list of grudges. Tom glimpses a side of Rachel he never knew.

As a deadly fire rages, Tom frantically tracks Jenny's phone. More details about Chris's death emerge, and a confession tears a family apart.

Fearing a friend was involved in Jenny's disappearance, Tom enlists Sophie's help. Emma investigates disturbing allegations about a teacher.

Sophie blocks Tom's attempts to speak with Henry. While searching for Bobby at Heaven, Tom and Pete spot a familiar face.

In the wake of a dangerous confrontation, Sophie warns Tom to stay out of the investigation. Tom learns that Jenny was hiding a secret.

While Tom follows a new lead about Jenny, Sophie and Emma deliver devastating news. The Marshalls struggle to keep their cool.

Tom begs for Sophie's help getting to Bobby. Before the night of the party, a cryptic entry in Rachel's diary sends Jenny on a quest for the truth.