A good 70s space opera. Humans and Draconians are on the verge of war due to each believing the other of constantly stealing each other's cargo ships. The Master, Delgado's last time in the role, with his Ogron minions and some device that makes them look like a human or Draconian, is trying to start the war. And then we find out it's not just the Master's plan but also the Daleks. Two of the Doctor's biggest enemies meeting should of been better than it was, and it might have been in the next story if Delgado hadn't passed away