A classic episode of the long running science fiction series, this DOCTOR WHO installment features the seventh doctor, Sylvester McCoy. The doctor is joined by Mel on a space bus tour to Disneyland, a prize they had won. The space bus becomes deadly when another intergalactic traveler is met, the Chimeron Queen Delta. She is fleeing from Gavrok and his Bannerman who have genocidal ambitions. The doctor and Mel must shield Delta and the child she is hatching from an egg in this intense space drama. The seventh doctor's trademark prop, the umbrella with the handle in a question mark shape makes its first appearance in this episode.