This Week in USA
![USA](https://layout.doctorwhonews.net/img/flags/US.gif)
Invasion of the Dinosaurs: Part Four
Last updated 13 April 2019
8:30pm-9:00pm EDT (00:30 GMT) < > « »
Retro TV
![Google](http://www.google.com/calendar/images/ext/gc_button1_en-GB.gif)
Featuring: Jon Pertwee, Nicholas Courtney, Elisabeth Sladen, Richard Franklin, Martin Jarvis, John Levene
Sarah awakens to discover that she is on a spaceship that left Earth months ago and is heading for a new world. The Doctor is framed for causing the return of the dinosaurs.
Synopsis Source: Doctor Who Guide
Broadcast Source: Retro TV