With his client Mr. Khalid now in police custody, Guy is forced into a difficult decision about his own loyalties, whilst Danny and Hamoud await instructions about the target of the planned attack. A shell-shocked Mona is reunited with her loved ones and attempts to put the pieces of her family back together again. However, Barnes and the counter terrorism police face a desperate race against time to stop more attacks on London and save Danny before it's too late.
