The Eleven has a plan. A grand plan. An appalling plan. A plan that endangers all life in the cosmos. With Ace working for the enemy, the Doctor must rely on scheming Time Lord Cardinal Ollistra for help. The stage is set for an epic confrontation.

Big Finish have been producing Doctor Who audios since 1999, starring Tom Baker, Peter Davison, Colin Baker, Sylvester McCoy, Paul McGann, David Tennant and John Hurt.

Answering a distress call from the out-world of Triketha, the Doctor and Constance Clarke discover human colonists battling against an onslaught of giant, malevolent insects. The insects' sting induces a coma, and it is only a matter of time before all the colonists succumb....

The TARDIS brings the Doctor and Turlough to a scientific installation on the planet Testament in the distant future. Humans have become intergalactic buccaneers, thanks to their ability to generate vast amounts of power for long distance travel. But experiments are underway on Testament - with potentially explosive and devastating consequences.

This is the final release in the Monthly Adventures range, which was launched in 1999. Beginning in 2022, there will be a regular rotation of releases, with each of the Fifth, Sixth and Seventh Doctors starring in their own box sets of adventures throughout the year.