Okay so Colin Baker's only confrontation with the Cybermen, as with every Doctor except Patrick Troughton, and technically Peter Davison.
The story involves a Cyber plot to change the history of Earth so that Mondas was never destroyed,so the Doctor (Colin Baker) and Peri (Nicola Byrant) it's a fairly good story but gets kind of convoluted if you haven't seen or read the previous stories, the main one of with is 'Tenth Planet', but as the story goes on it does get less confusing. On top of all this Lytton is back in the story after being stranded when the Dalek's time corridoor was cut-off in 'Resurection of the Daleks'and his character develops extremely well with the story as it goes on which means this story does have quite a back story to it and Colin Baker's massive presence as a Doctor shows in this story, in some cases he's still feeling the effects of a regeneration after 'Caves of Androzani' but overall this story has a good feel, and is a good Cyber story before that mess which was 'Silver Nemesis'.
The only problem i could find with this was the quality of the transfer from the Video to the DVD you can really pick up on the poor quality, but you can easily see past this issue.
Extra's; The extra's are very good on this particular story, from making the story, to the history of the Cybermen, including clips from; The Tenth Plant, Moonbase, Wheel in space, Tomb of the Cybermen, Revenge of the Cybermen and so on through the 80's, so it's fairly detailed, on the disc is a weird take on Cybernectics involving a man who has used Cybernetics, i found it to be extremly strange but rather funny, but at such a low price for this story, and the lack of stories Colin Baker had, this would be an excellent buy.