One victim, found dead on a London street. Four detectives, in four different time periods, must solve the mystery to protect Britain's future.

When Flight KA29 is hijacked during its seven-hour journey from Dubai to London, Sam Nelson—an accomplished corporate negotiator—tries using his professional skills to save everyone on board. Will this high-risk strategy be his undoing?

Lucy wakes every night at exactly 3:33am. Nothing in her life has made sense for a long time. But the answers are out there, somewhere, at the end of a trail of brutal murders.

A man who is suffering a mid-life crisis finds new meaning in his life as part of an all-male, middle-aged, amateur synchronised swimming team.

A businessman, on his daily commute home, gets unwittingly caught up in a criminal conspiracy that threatens not only his life but the lives of those around him.