The Best Episodes Written By Dennis Kelly

In 1974, genius Philip Carvel meets an idealistic security services agent, Milner, at a secret forum of political, industrial, financial and academic leaders... by 1979, Carvel's losing his mind.

Following the revelation that her father's alive, Jessica sets off to find him, with hostage Milner in tow. Wilson and Leah analyse their information and discover a far darker, more terrifying secret.

With the country on the verge of bankruptcy, the government can't pay its national debt payments. Section D is asked to get back more than a billion pounds of illegal earnings from the DeWits Bank. The team has to find out what, or who, Nightingale is after Ruth's investigations into the power meeting at Basel pay off.

The final episode sees time running out. As a daring plan is formed, only one question remains - will the true secrets of Utopia finally be revealed?

A shocked Dugdale reluctantly agrees to harbour Jessica, but who should be scared of who? When Dugdale visits Jen and Alice in a secret prison it's clear he will do whatever The Network asks.

In the final episode the race is on to find out who is going to release the flu. The gang track down Dobri Gorski, where he tells them the names of the three people he trained to release the flu.

In the present day, Jessica has been held captive by Milner who has tortured her in a desperate attempt to find out just what adjustment Carvel made to Janus

The gang's attempt to disrupt The Network's plans backfires leaving one of them in danger. Arby's confession to Jessica has damaging repercussions while Becky is left with an impossible choice.

The gang are on the run and find a precocious young hacker, who uncovers the key to The Network's new plan: a real global outbreak of weaponised Russian flu.

When five strangers from an online comic book forum gain possession of a cult graphic novel, they find themselves pursued by a shadowy organisation who are prepared to kill to track it down.

The gang feel the full weight of The Network's power as Grant is framed for a shocking crime. With nowhere else to turn, they are forced to make a new ally - but can she really be trusted?

Hidden away in a derelict manor house, the group attempt to decipher the secret meaning of the manuscript. Will uncovering the identity of Mr Rabbit really allow them to return to their former lives?

Ian and Becky are forced to face the terrifying reality of life on the run. Meanwhile, Dugdale is drawn deeper and deeper into a plot that threatens to have fatal consequences.

After Sam, a London family man in crisis, rescues a troubled young girl in the woods, he brings her home to the ominous Osea Island, where inhabitants are preparing for a curious annual festival involving the island's history. As he meets Osea's secretive locals, Sam grows increasingly desperate to return to the mainland to make an important call - but the island proves difficult to escape.

Winter. Helen surprises her two daughters, Tallulah and Ellie, with a trip to Osea Island for Ellie's birthday. After finding that the cottage she booked is suspiciously no longer available, Helen scours the island for a place to stay, but finds resistance at every turn.

As the islanders prepare for a fateful birth, Helen reveals her true intentions in coming to Osea and, after joining a search party, is pressed on her past. A peculiar girl befriends Ellie and offers to take her to a mysterious place closed off to outsiders.

Helen protects her family as tensions come to a dramatic conclusion.

Sam is shocked to learn the truth about his connection to Osea and the islanders’ intentions for his future. Later, in a fight for his life, Sam tries desperately to escape their clutches and make it back to the mainland in one piece.

Plagued by a disturbing dream, Sam awakes to find himself in a compromising situation and, having missed the morning crossing to return to the mainland, spends the day trying to learn more about the islanders’ beliefs. After a series of confusing and terrifying events leaves him shaken, Sam quickly plots a way off Osea with Jess, but is convinced to stay put as the islanders prepare for a dry run of their big event.