Continuing the watch through of Delgado vs Pertwee serials, I've finished 'Colony In Space'. It was fantastic not-stop thrilling entertainment with plot-twist after plot-twist across an epic 2.5 hours. I enjoyed the heavy political overtones provided by a giant unfeeling Mining Corporation's employees being so evil they make The Master (With his new plan of universal genocide (A plan that The Doctor is tempted to go along with btw!)) seem mild in comparison. It's the old western story of cowboys and Indians versus corrupt rail Barons transposed to space. Occasionally the plot relied on contrivance to satisfy the episodic structure but overall the 1st class writing was what set this serial apart.

The best thing was Bernard Kay's character, Caldwell. A basically decent guy who is on the wrong side. You really felt for him everytime he was forced to do something against his nature and rooted for him when helped the good guys in some small way. It was a rollercoaster performance that left me with a lump in my throat when Caldwell thinks he's caused the deaths of a whole group of people (It was all written on his face).

I also greatly enjoyed Pertwee busting his 'Venusian Aikido' moves at least twice in each episode.

"Hiii!"