Vera is called to Northumberland University when a student plummets to his death from the top of a disused faculty building.

Athena travels to the UK and her tragic secret is revealed. Niska’s consciousness assessments begin. With more time at home Joe notices Sophie’s increasingly eccentric behaviour. As Karen returns to…

Mia and Ed get closer but their relationship is thrown into jeopardy when their secret is discovered. Toby gets closer to Renie but offends her when he breaks through her…

When Mia risks falling into the hands of a mysterious organisation, she is forced to take drastic action. Odi struggles to find meaning, while Sophie is awestruck by Renie’s ‘Synthie’…

The Syrian foreign minister tries to establish subversive contacts with MI5 at the opening of a cultural centre in London. Fiona is desperate to lead this mission and must confront…