The 10th Doctor arrives on a small world in the middle of a Cyber invasion, unknown to him the Entity has come along for the ride.
Note: This serves as The Entity Part 3 AND The 1st Legion Part 6.
Note 2: Its a sequel to the 1st Legion from the Cybermens point of view but a prequel from the Doctors
Note 3: The it is the same planet from the The 1st Legion Part 5
Note 4: I have another new series called This, its meant to be kinda funny, its a bit crude and they swear a bit but check it out anyway, it'll be fun :)