This Week in Australia
![Australia](https://layout.doctorwhonews.net/img/flags/AU.gif)
The Poison Sky (Series 4 | Episode 5)
Last updated 26 January 2018
7:52pm-8:37pm AEDT (08:52 GMT) < > « »
ABC Entertains
![Google](http://www.google.com/calendar/images/ext/gc_button1_en-GB.gif)
Featuring: David Tennant, Freema Agyeman, Bernard Cribbins, Catherine Tate, Jacqueline King, Christopher Ryan, Ryan Sampson
As the Sontarans choke the Earth, the Doctor battles to keep both Martha and Donna alive.
Synopsis Source: ABC
Broadcast Source: ABC