And from one story with the Master, to a superior story with the Master.  “Freedom” is Steve Lyons attempt at examining the Third Doctor’s general relationship with his exile on Earth, set with the Master being in charge of a corporation just to taunt the Doctor’s general exile.  There are also time experiments and the entire thing is meant to be the tantalizing glimpse of freedom that the Doctor is clearly never going to get.  The climax hinges on the Doctor being tempted to fall down basically a path that would make him just as bad as the Master.  It certainly helps that there is a handle on the Master as a character and where they are at the point where this story is set, after The Daemons specifically, making it harsher that the Doctor has had glimpses of freedom although freedom on a very short leash. 7/10.