Lisa plucks up the courage to go to Michael's apartment and ask him out on a date. Dr. Morris tells Michael that not only is he not going to be allowed to go but he also cannot call to cancel either. At the same time Dr. Morris becomes interested in the rash of people doing incredibly stupid things, almost as if they had completely lost their sense of fear. He wants to know whether this is just coincidence or whether there is someone behind it. To find out he gets Michael to investigate.

Theo reveals a big surprise to Michael; he was not the Governments first experiment of his type. There was an army private before him who had the same kind of treatment years earlier. He escaped and vanished into thin air, never to be seen again. Now Theo thinks that he has finally reappeared, as Maceo T. Jones, unbeaten heavyweight boxing champion of the world. Michael's job is to get close enough to the champ to get a DNA sample from him. Once Theo has that in his possession he will be able to prove without a doubt that Maceo is, or isn't, who he thinks he is. Lisa starts her new job as a real estate agent and discovers that it is not going to be as easy as she first thought.

His wife having kicked him out Roger asks to stay with Lisa and Heather, who doesn't take long to get fed up with him living with them. She is going on a school trip to the museum, full of other old things, which does nothing to cheer her up. There she meets Dr. Bing, who looks after the insect section of the museum. Meanwhile Dr. Morris is trying to find out why virus carrying Mosquito's are appearing, before they should be out of hibernation, and are biting rich, prosperous businessman.

With more and more people being bitten by insects carrying a killer virus it seems as if there is some sort of human control over these concerted attacks. Can Theo and Michael find out if this is the case and , if so, find the person controlling them before it is too late?