Dr. Who and the Daleks

Dr. Who, his two granddaughters Susan and Barbara and Barbara's boyfriend Ian are accidentally transported to a petrified jungle. The travellers discover a small container of drugs which they take aboard Tardis. They are captured by the Daleks, who seize the fluid link for examination. The Daleks then realise that the group are developing radiation sickness and that the drugs they discovered earlier may be their only hope of survival. While covertly observing the captives, the Dalks discuss their own plight. They decide to ambush and kill all of the Thals when they arrive.