The Doctor and Mel go for a holiday trip to Shangri-La aboard a Nostalgia Tours bus, only to get dragged into the battle against genocide of their fellow passenger Delta, a Chimeron Queen fleeing from the Bannermen who wish to make her species extinct.
Sylvester McCoy , Bonnie Langford , Don Henderson , Belinda Mayne , Stubby Kaye , Morgan Deare , Ken Dodd , Richard Davies , Sara Griffiths , Keff McCulloch
BBC
