Broadcast: Sunday 8th May 2016
3:30pm-4:00pm EDT (19:30 GMT) < > « »
BBC Kids

Featuring: John Leeson, Philippa Coulthard, Keegan Joyce, Robert Moloney, Robyn Moore, Daniel Webber

Following the Thames being heavily polluted by an alien chemical, K-9 discovers that telepathic alien ‘Medes’ are imprisoned by Drake, and that he is attempting to duplicate a missing special ‘key’ to operate their organic starship. K-9 rescues Medes by following their holographic avatar projections, and June discovers Drake’s plot and helps release their starship.
Synopsis Source: Doctor Who Guide