Mission from Colonel White! (short story)

Mission from Colonel White! was a 21 short story printed in TV Century 21 that contained elements from the Doctor Who universe.

Notably, it saw the Mysterons once again attempt to destroy Unity City, a location first introduced in The Daleks comic story Duel of the Daleks.

Summary
On behalf of Colonel White, Agent Twenty One briefs Universal Secret Service agents and Spectrum's Shades on the situation that the Mysterons have captured a TX 204 Jet-fighter and intend to use it to destroy Unity City. He states Agents and Shades should report to him immediately with information on how they would stop the plane mid-flight, along with a reminder that agents whose reports are featured on the USS page will be awarded ten shillings.

Characters

 * Twenty One

Worldbuilding

 * The TX 204 Jet-fighter is one of the world's most effective combat craft.
 * Twenty One specifies that agents' reports should be no longer than one hundred words.

Story notes

 * As well as a crossover with the Doctor Who universe, this story also crossed over with Captain Scarlet through the heavy involvement of Spectrum and the Mysterons.

Continuity

 * The Mysterons have threatened to destroy Unity City before. (COMIC: We Will Destroy Unity City, A New Threat!)