Invasion of the Dinosaurs - Part Two
The Doctor and Sarah escape from the soldiers who are too busy dealing with a large dinosaur to notice their prisoners running away. The Doctor and Sarah escape into a garage where the Doctor finds some tools and removes the handcuffs that join them. They encounter a man who seems to come from the distant past. He attacks them but then he disappears. The Doctor thinks he was sucked backward in time.
The Brigadier finds the Doctor and Sarah and takes them back to his command post. He and Sgt Benton explain everything they know about the current situation. They are interrupted by General Finch who doesn't care for the Doctor's theories about what brought the dinosaurs to 20th century London. The Doctor comes up with a plan to capture one of the dinosaurs so that he can study it.