dr who the deadly assassin dvd

today i got the deadly assassin DVD for £12.71 i all ways wanted to get it since it came out so this is whats in it

Gallifrey,planet of the time lords. the doctor has finally come home, but not by choice summoned by a vision from the matrix, he is drawn into web of political intrigue and assassination nothing is quite what it seems, and in the shadows lurks his oldest and deadliest enemy