Doctor Who DVD boxed set UNIT Files – Third and Fourth Doctor classics. Watch UNIT battle dinosaurs and androids! This three disc release comprises the six-part Jon Pertwee story Invasion of the Dinosaurs and the four-part Tom Baker story The Android Invasion.

The Android Invasion (1975) (TOM BAKER – 4th Doctor)
When the TARDIS lands in the sleepy English village of Devesham, Sarah thinks the Doctor has finally got her back home. But all is not as it seems – the village is unusually deserted and deadly white-suited spacemen patrol the countryside. When the dead begin to come back to life, the Doctor decides to contact unit. But their unit friends are also dangerously changed.

Invasion of the Dinosaurs (1974) (JON PERTWEE – 3rd Doctor)
Featuring Part One available for the first time in an alternative colour-recovered version! Returning to London, the Doctor and Sarah-Jane Smith find a city almost completely devoid of life. The civilian population has been evacuated in the wake of an unimaginable event: somehow, dinosaurs have returned to terrorise the Earth…

Special Features include Audio Commentaries and Making Of Documentaries. Plus a Life After Who documentary on Android Invasion producer Philip Hinchcliffe!

While UNIT's heyday was the first half of the seventies, they have returned repeatedly since then all the way up to the present day. And with Brigadier Lethbridge-Stewart's daughter now in command, the Doctor's influence lives on!