Synopsis
While a deadly hacker turns Britain upside down, Danny decides weather to reveal all to Will, MI5 hunts the source down to an Islamic mosque with the help of Mi5's best computer programmers. But things get suspicious when Ruth, close onto the tail of the hacker, goes missing and so does a member of the special team...
Nicola Walker
Hugh Simon
Rupert Penry-Jones
Matthew MacFadyen
Richard Armitage
Keeley Hawes
Hermione Norris
Hermione Norris
David Oyelowo
Max Brown
Lara Pulver
Lara Pulver
William Hope
Anna Chancellor
Sophia Myles
Natasha Little
Amy Lockhart
Shauna Macdonald
Gemma Jones
