If you haven’t yet got yourself a copy of Una McCormack’s Fifteenth Doctor audio original, then here’s your chance!

Landing on an unnamed planet, the Doctor and Belinda find themselves besieged by a swarm of drones. They shelter in a cluster of hi-tech buildings, inside which lies a control base. The only thing missing is any sign of life. While the Doctor puzzles over a base without people, Belinda . finds herself whisked off by teleport.

Meanwhile, three thousand light years away, project manager Hazzet is confused by unusual systems activity on the uninhabited Colony 5. Why are there now apparently two bases on the planet, each poised to attack the other?

Read by Clare Corbett, Counterstrike is available on CD (RRP £11) and download (RRP £14). To be in with a chance of winning one of FIVE copies on CD, just send us the answer to this question:

TERMS AND CONDITIONS: The competitions are open from Thursday 23 July 2026 to Wednesday 19 August 2026. One entry per person. The competitions are not open to employees of Doctor Who Magazine or anyone else connected with Doctor Who Magazine, the printers or their families. Winners will be the first correct entries drawn after the closing date. No purchase necessary. DWM will not enter into any correspondence. Winners’ names and county of residence will be available on doctorwhomagazine.com. Entrants under 16 years of age must have parental permission to enter. To read the BBC’s code of conduct for competitions and voting visit https://www.bbc.com/editorialguidelines/guidance/code-of-conduct. Prizes will be sent to winners as soon as possible. Big Finish downloads require winners to sign up to a free Big Finish account online.