The Doctor and his friends Ben, Polly and Jamie arrive at Gatwick airport. They quickly stumble upon an alien plot, centring upon the mysterious ‘Chameleon Tours’ - a low-price holiday company, whose young passengers have been vanishing in unexplained circumstances. The Doctor investigates further, but it isn’t long before his own friends start disappearing too.

Cast

Patrick Troughton

The Doctor (voice)

Anneke Wills

Polly (voice)

Michael Craze

Ben (voice)

Frazer Hines

Jamie (voice)