Leanne Wellings disappears from a motorway service station leaving her young children abandoned there. The police are baffled.
The press have now got news of Leanne and Rosie's disappearance. The family and Barclay are forced to hold a press conference but Matthew refuses to attend.
Barclay is forced to defend what he has been doing in the investigation to a panel of his seniors.
The kids enjoy a day out at the fair with Matt, Simone and Sarah. With still no news the family begin to turn against each other.
A chance discovery by Barclay sees him linking Kyle to Leanne's murder. Matt decides to exact some justice of his own.
In a Yorkshire hospital an abandoned newborn is discovered; at the same time a commuter train is halted by a suicidal jumper. Could they be connected?
PC Laurie Franklin is convinced that the two events (the abandoned baby and the body on the train tracks) are connected, but she has little success in persuading her new boss, DI Mal Craig. That is, until new evidence in the form of mobile phone footage of the "jumper" suggests murder.
In an attempt to garner more leads with the investigation, the train incident is reconstructed. In the meantime, tension and suspicion are on the rise within the Preston / Akram family.
The team receives two leads into the identity of the jumper/victim and the abandoned baby. Elsewhere, Nusrat and Danny are worried about Khalil and his behavior since returning from Pakistan.
Baby Michael's fate is determined and viewers discover what really happened on "Day One."