Aliens Among Us 3

 was a full cast audio anthology released in February 2018 by Big Finish Productions.

Publisher's summary
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 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...