Rania's arrival triggers unwanted memories for Bash; Mags can't win her new boss' approval.
A bus full of kids crashes and sends the team racing; Bash's life is upended when he is reunited with a woman from his past; with Dr Bishop still unconscious after his stroke, Mags struggles to find support in her mentor's absence.
Zara and Eric are taken hostage in an investment back when providing risk assessment services. It is then up to Eric to negotiate the terms of their release.
The gang takes on a case of stolen memory, only to discover they’re all forgetting something… or someone. Meanwhile, the new Morrigan is hell-bent on making sure some memories stay buried forever.
Mary may have to sacrifice her cousin to save her own life. Catherine is haunted by her past. Elizabeth and Lola become an unlikely team.