The Medes Starship was a spacecraft used by the Medes. Using staffs, they could make both themselves and their ship invisible.
In the year 2050 two Medes came to Earth in a starship. They were captured by Inspector Drake of the Department and imprisoned. Drake attempted to use their technology to spy on the people of London. These attempts caused chenium to leak into the River Thames, polluting it. The Medes tried to speak with K9 and the gang by using their avatar forms to direct K9 to the source of the pollution in the sewers.
June Turner found the source of pollution, a London warehouse. She shut down the project,. The gang and she went to Dauntless Prison and released the Medes, returning their technology and apologising for their capture. The Medes cleaned up the Thames and returned home. (K9TV: Alien Avatar)
