Laura's online attack on Andrew yields unexpected consequences as a figure from her past haunts her.

A man from Laura's past visits Andrew and reveals some powerful information about her; Laura realizes she must turn to Andrew for help with a student.

Laura travels to Edinburgh to uncover the truth behind Andrew's wife's death, but finds more than she bargained for.

Laura's resolve to bring Andrew to justice deepens and she enlists Tom's help in her plan.

Terrified of arrest, Andrew enlists Luke's help as an alibi, but Laura won't give up easily; violent consequences are imminent.