Final episode of the cyber thriller. As the extent of Russia's interference with the UK becomes clear, Saara and Vadim join forces. Can they uncover the hidden code and stop a war? (Ep6/6) [AD,S]
Cyber thriller. Signs of irregularity in the general election result prompt unrest, and the UK's relationship with its allies is threatened. Saara makes a devastating discovery. (Ep5/6) [AD,S]
Cyber thriller with Simon Pegg and Mark Rylance. With Danny unconvinced, Saara is in a difficult position, but Kathy's revelation forces her hand. Meanwhile, Marina moves to London. (Ep4/6) [AD,S]
Cyber thriller. Saara's classmate Vadim returns to St Petersburg and takes a covert job, where he soon becomes the victim of his own success, with his allegiances put to the test. (Ep3/6) [AD,S]
Cyber thriller. Saara finds a suspicious line of encrypted text within the virus's code and unravels a dubious invitation. Is she getting closer to the truth or falling into a trap? (Ep2/6) [AD,S]
Cyber thriller from Peter Kosminsky. Student Saara wins an internship at GCHQ, but when the UK's internet goes down, she finds herself on the frontier of high-stakes cyber warfare. (Ep1/6) [AD,S]