Series 4: State of Terror

Series 4: State of Terror

Captain Berthaud and her team investigate a radical cell when a student is left to die in the woods, maimed by the explosion of a homemade bomb.

On iPlayer

This programme is not currently available on BBC iPlayer


There are no upcoming broadcasts of this programme

Last on

All previous episodes

"See you next season"


Showrunner Anne Landois answered your questions after the series finale.

Meet the characters

Meet the characters

Find out more about the main characters from Spiral.