The final volume of the latest series of Torchwood sees the team facing their biggest threat so far. Yvonne Hartman (played by Tracy-Ann Oberman) has returned! Presumed dead after doing her duty for queen and country in the events of the Doctor Who TV series two finale, Doomsday, listeners will recognise her from Torchwood One: Before The Fall and Torchwood: One Rule. But she’s back. Is Torchwood ready?

“As if things weren’t bad enough for Torchwood, now they’ve got this to deal with!” explains producer James Goss. “The twist was Russell T Davies’s suggestion but it’s not all about that. We’ve also got Joseph Lidster’s take on vigilante groups, Helen Goldwyn’s written a story about a quiz night run by a religious maniac, and we’ve got exploding ramblers.

“We’ll also see Captain Jack’s (John Barrowman) plans fall horridly apart, Gwen (Eve Myles) and Rhys (Kai Owen) go on a blood-soaked double date with Mr Colchester (Paul Clayton) and his husband Colin (Ramon Tikaram). Orr (Samantha Béart) tries to solve the internet, Andy Davidson (Tom Price) gets asked out for dinner, and Terence Hardiman (The Demon Headmaster) plays a character called Escape.”

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5.9 Poker Face by Tim Foley

Torchwood are in trouble. Terrorist attacks are rocking the city. Control of the police has been ceded to Cardiff's alien masters. And it looks like it's all been arranged by Captain Jack Harkness. Worse, there's a dead woman in the cells who says that Torchwood will be hers by dawn.

5.10 Tagged by Joseph Lidster

"I know what you've done. I know what you'll do." The phrase starts appearing everywhere around Cardiff. On posters. On the internet. It's just a prank, isn't it? Only a wave of vigilante crime spreads through the city. People are taking revenge. Suddenly everyone knows what you've done. And they know what you'll do.

5.11 Escape Room by Helen Goldwyn

Gwen Cooper, Rhys Williams, and the Colchester-Prices go to try out an escape room. They've heard a lot about them. Especially this one. People keep going into the game and not coming out. But Torchwood will be fine. After all - partners can trust each other. Can't they?

5.12 Herald of the Dawn by James Goss

It all starts normally enough. A car park full of ramblers is incinerated by a thunderbolt. But the next day it's clear there's something very wrong. Something's changed. Something's coming. It's the end of the world. And that's what Torchwood are best at.

Aliens Among Us Part Three is available on CD at £28 or on download for £25 in February 2018. You can buy Parts One and Two here. Or you can also save money by getting all of Series Five: Aliens Among Us as a bundle for £84 on CD or £74 on download.

And keep an eye out at the end of the month when an exciting new Torchwood release will be announced…