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Blue Lights Series 4 Episodes

  1. Friday 00:05
    BBC Two

    So Far

    4/6 In the aftermath of the trial, Sandra reflects on a secret Gerry once shared with her. (R)

  2. Next Tuesday 21:00
    BBC One

    Ghosts

    5/6 Sandra enlists help to expose state secrets, while Grace’s instincts put Annie in danger.

  3. Sat 31 Oct 2026 00:55
    BBC Two

    Ghosts

    5/6 Sandra enlists help to expose state secrets, while Grace’s instincts put Annie in danger. (R)