Episode 5: While Christian's team searches for the bomber, CAB looks for a money trail linking Bibi to Fionn's diamond-laundering scheme. Bibi offers Fionn's wife a payoff, but she wants more money in exchange for Fionn's hard drive. Sana's friend Kamal turns up at the station with information about the night Sana disappeared, giving Christian and Emer a crucial lead.