Warrior's Gate became more deep and intricate as it went on, each part has been very satisfying, there were big hopes for it's concluding part.
The Doctor and Romana have jumped across streams and are now in the hands of Rorvik and his guards. They demand to know the route of escape, K-9's ramblings indicate the Space is contracting, and they are in mortal danger. The Tharil admit they abused their power and Biroc engineers the Doctor and co's release. They escape and reach the TARDIS, but refuse to take off as there are prisoners on board Rorvik's ship, he tries to take off, but the Doctor fears if he does it will cause collapse of the area. The guards attempt to resuscitate all of the remaining Tharil in an attempt to acquire a time sensitive navigator to take off and smash force his way through the mirrors. Romana and K-9 decide to stay to help the Tharils free their kind from other planets, Rorvik's ship explodes and the Doctor escapes with Adric back into N-Space.
Rorvik calls Adric a 'Poisonous Child' haha, how right he was, sadly Matthew again, wasn't great. Clifford Rose continued to impress as a growingly insane Rorvik. The music was a little too much and a bit intrusive.
Romana's departure was a little flat, The Doctor would have questions to answer about her whereabouts in years to come.
Episode 4 gets an 8/10, and the Serial as a whole gets 8/10, it aimed very high, and in part achieved what it set out to, it's a little over complicated in parts.