4/6 The Kaled dome is destroyed by the Thals' rocket but Daleks appear and a massacre begins.
3/6 The Doctor informs the Kaleds of Davros's experiments, but Davros takes drastic action.
2/6 In the Thal dome, Sarah is forced to load a war rocket with radioactive explosives.
1/6 The Time Lords send the Doctor to Skaro shortly before the creation of the Daleks.
2/2 Sarah has been caught by Styre, the Sontaran conducting experiments on the captive humans.