Max must bring a scientist, Dr. Canyon, into the CONTROL camp. His problems multiply quickly; the invisible doctor turns out to be a pretty woman whose visibility returns just as Agent 99 enters their apartment.

CONTROL corners KAOS Agent Klineschmidt in a house and attempts to take him alive. Before they can do that, he manages to shoot Max in the buttocks. Forced to stay at home, Max amuses himself by using binoculars to spy on the office building across the street. The office he's watching belongs to Otto Greer, who is a government contractor. Top secret papers have been disappearing from his office so the Chief assigns 99 to work undercover as secretary to Greer. Max keeps an eye on 99's progress and discovers too late that Greer is a KAOS agent planning to kill both of them.

When IH Industries acquires KAOS, Max and 99 attempt Operation Baby Buggy Switch to stop the new head of KAOS, Ironhand, a man with an iron fist, from obtaining The Anti-Anti_Anti-Missle-Missle plans.

When The Chief orders Max to romance and betroth Ann Cameron, a beautiful widow suspected of murdering her 12 husbands for the insurance money, which she donates to KAOS, the wedding coincides with The Smarts' first wedding anniversary, much to 99's dismay.

Because he failed to retrieve a little red book from a Kaos carrier,Max has to train,and recruit three convicts to break into a highly fortified Mansion where the Red Code Book is.

Mistaken for a doctor and his nurse, Max and 99 are kidnapped and forced to operate on a wounded gangster.

CONTROL is transporting vicious killer Big Eddie Little to jail by pretending to run in a marathon with him. Little breaks away from Max, but not before Max shoots him in the shoulder. Little gets away, vowing to kill Max. Max ignores his threats and goes to visit 99 and the twins in the hospital. Dressed in hospital scrubs, Max and 99 are taken for a doctor and nurse by KAOS and taken to a remote cabin to remove the bullet from Little's shoulder. Only by pretending to remove the bullet can Max escape from the cabin alive.

Several agents have been murdered by someone with incredible strength. The only clue is an empty banana peel. It is soon deduced that the killer is an ape.

CONTROL agents are receiving bananas in the mail and then being murdered, completely puzzling CONTROL. What they don't know is KAOS is using Chucko, an ape made to look like a human being, as the assassin. The plot thickens when Max receives a banana in the mail and a new agent, Chuck Armstrong, is assigned as his protector. Unfortunately, Armstrong is actually Chucko the Ape. Before Max discovers Armstrong's real identity, Armstrong reverts back to Chucko and takes 99 to the roof of Max's building, just like in King Kong.

Max is serving as a courier on board an airplane when he is forced to release his package from the plane, sending it to land on the roof of Hester Van Hooten's mansion. The only problem is Van Hooten hasn't allowed visitors to her house in 20 years and she and her brother aren't about to start now.

Max is assigned to protect Kaos Agent Dietrich.Dietrich has turned informant,and will give testamony on the inner workings of Kaos that would put an end to Kaos.The only obstacle however is a man name Kibbee,a ruthless Kaos assassin who has never failed an assignment.Will Max be able to protect Dietrich,and himself from Kibbee also known as the Exterminator?

Max and the Chief investigate a series of security leaks that seem to be connected to a chain of spas.

A villian known as the Whip uses a special gong to hypnotize Max. When he is under the Whip's control, Max steals the NARCO 5-12. Later, with the help of the Chief and Larabee, Max is cured and captures the Whip.