The Undeclared War

Second series of the thriller about a team of GCHQ analysts. Director of operations Danny Patrick is under huge pressure as he deals with the fallout from the Russian cyber-attack. Saara discovers there's a mole in GCHQ, while Vadim is missing - and in danger. Simon Pegg stars, with Adrian Lester, Siân Brooke and Hannah Khalique-Brown

Tuesday, 21 July 1 airing

21:00