Doom Coalition 3

 was a full cast audio anthology released on 22 September 2016 by Big Finish Productions. It was the third release of the Doom Coalition audio series. It featured Paul McGann as the Eighth Doctor, Nicola Walker as Liv Chenka, and Hattie Morahan as Helen Sinclair.

Publisher's summary
3.1 Absent Friends by John Dorney

Earth. The late 20th century. Across the world, the mobile phone is gaining popularity as more and more people decide to join the digital age. But for the residents of a sleepy English town sitting in the shade of a new transmission mast, that ubiquity has a troubling cost.

When the TARDIS veers off-course, the Doctor and his companions find themselves in the middle of a mystery. Sometimes the past comes back to haunt you. And sometimes the future does as well.

3.2 The Eighth Piece by Matt Fitton

15th Century Prague: in the castle dungeons, a prisoner raves about the end of the world. Outside, Liv Chenka seeks out the workshop of a strange Clockmaker to see what he is creating.

England, 1538: Lord Thomas Cromwell finds his duties interrupted by otherworldly forces – clockwork soldiers, an unusual nun, and a mysterious scholar calling himself 'the Doctor'. Perhaps the truth can be extracted in the torture chamber of London's Bloody Tower?

Rome, 2016: Helen Sinclair has an appointment with an enigmatic Professor, whose greatest work is almost complete. Only the Eighth Piece is missing…

3.3 The Doomsday Chronometer by Matt Fitton

While River Song takes Helen on an archaeological expedition like no other, the Doctor finds himself enlisted by an alien Queen to save her people.

Trapped and alone, Liv stares death in the face as she meets the enemy who’s been dogging the TARDIS travellers’ footsteps throughout Earth's history.

The Doomsday Chronometer has been protected for five centuries: secret cults and societies jealously guarding its mystery. But what is their real purpose? The Doctor is about to discover the truth…

3.4. The Crucible of Souls by John Dorney

The date has been set.

The trap has been sprung.

A life has been taken and a maniac is on the loose.

With the TARDIS crew separated and in terrible trouble, will today be the day the bad guys win?

Spoilers…

Stories

 * Absent Friends
 * The Eighth Piece
 * The Doomsday Chronometer
 * The Crucible of Souls