The Best Episodes Written By Catherine Tregenna

The 20-year-old unsolved death of a young boy leads to the discovery of repressed memories, and a risky case for James and Alesha.

Samuel Blake ups his game, forcing Harry to make a near-impossible choice. Meanwhile, the bracelet's power starts to wane.

The discovery of a gun in the bedroom of a neighbour sees Banks involved in an internal investigation which could break up the team.

While Helen's career hangs in the balance, Banks risks everything to rescue his daughter who has been taken hostage by Jaff Kitson.

Harry's forced underground as he tries to prove his innocence. But then Blake finds a way to make him look more guilty than ever.

A Jack themed episode Whilst investigating an old, derelict dance hall, Jack and Tosh are transported back to the 1940s, during the Blitz. Owen, Ianto, and Gwen realise, in modern day, that this has happened, and go in search of clues Tosh may have left. Meanwhile, back in the forties, Jack meets a very interesting man. One with the name Captain Jack Harkness...

When Rhys discovers the truth about Torchwood, he helps the gang to find the source of an unusual alien meat supply.

A memory thief gets in to the minds of the Torchwood team, and uncovers long forgotten secrets.

Three passengers from 1953 arrive in modern day Cardiff, when their plane flies through the Rift. With no means of travelling back, each person must adapt to their new life, starting personal relationships with the separate members of Torchwood.

When the body of a 16 year old girl is found dead in her home in the middle of the afternoon, the investigating police cannot be sure a crime was even committed. With no forensic evidence and nothing to suggest the victim didn't die of natural causes, Matt and Ronnie question why they have been called out in the first place. However, the mother's victim believes she was raped because she never slept naked. On further investigation, an unlikely murder weapon is uncovered and a likely suspect - someone with whom Crown Prosecutor James Steel has a history. Determined the accused is guilty, James pursues him with every power available. Like a man possessed, he pushes the boundaries of the law to the legal limit. Is our hero persecuting an innocent man or justified in his convictions?

England, 1651. The deadly Highwayman 'The Knightmare' and his sidekick stalk the dark streets of London. But when they find loot that's not of this world, they come face to face with The Doctor. Who is the Nightmare in league with? And can the Doctor avoid the hangman's noose and protect Earth from a devilish betrayal?

A revelation about the night of Cate's murder changes everything.