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.

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

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

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.

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

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.