A grisly find at Dublin Port prompts an investigation; journalist Terry Corcoran probes allegations of human trafficking from Eastern Europe to Ireland; a German banker reports the theft of his laptop and his car.

Maureen starts a new job for the Social Democrats as media-relations officer; Nina uncovers a credit card scam at the nightclub where she suspects her sister is being held.

When Terry taps his brother-in-law's financial expertise to analyze the data on the disc stolen from Erskine's apartment, he realizes that it points to a conspiracy of money laundering and campaign-finance violations. Meanwhile, frustrated by the authorities' inaction and bureaucratic red tape, Nina decides to take matters into her own hands to get justice for her sister.