2/6 Chancellor Ortron sentences the Doctor and Sarah to be punished by Aggedor.
1/6 The Doctor makes a return visit to Peladon some years after his previous visit.
4/4 The Daleks prepare to launch a deadly plague missile that will kill everyone on Exillon.
3/4 The Daleks force the Exillons to work as slave labour to mine the life-saving parrinium.
2/4 Dalek weapons are useless due to the power drain so they make a truce with the Doctor.