99 and CIA agent Quigley run into Siegfried and Starker while on a case in Canada. Meanwhile, Max and the Chief are snowed in at Miami, thanks to a KAOS plot.

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.

CONTROL must persuade a decendent of Columbus not to sell America to KAOS.

When KAOS plans to destroy California by smuggling into the country dolls secretly containing the ingredients for the most powerful explosive known to man, Max and The Chief enroll in Miss Valerie's School For Expectant Fathers, convinced that it is a KAOS front.

Once KAOS gets a nuclear bomb, they try to blackmail the world into disarmament, but Max and 99 are sent to save the day.

When Agent 99 is caught without dessert, she gratefully accepts chocolate mousse from her solicitious neighbor Naomi Farkas. Naomi and her husband Emil are secret KAOS agents who hope to photograph some papers the Chief has with him.

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.

Max and 99 follow the wrong map and end up at KAOS's new HQ instead of the maternity ward. 99 is incredibly close to giving birth, which is making Max nervous and unable to pay attention to his job. He spends all of his time trying to find the shortest way to get 99 to the hospital. At the same time, CONTROL is desperately trying to find the new location of KAOS HQ. It's made more urgent because Simon the Likable is coming to town to steal the Huffiker Plans from the Pentagon. Simon is unstoppable because everyone that sees him instantly likes him and will do anything for him. Max and Simon get their directions mixed up and Simon goes to the maternity hospital while Max takes 99 to KAOS HQ, Sunny Slope Sanitarium.

Max poses as a wax sculpture of Hitler to spy on a KAOS scientist who brings waxworks to life.

KAOS Agent Algernon DeGrasse owns a nursery that uses its plants to spy on important people in Washington. After a CONTROL agent disappears, Max goes to work in the nursery to crack the case. While he's working undercover as a Japanese gardener, 99 stocks up on plants for their apartment.

CONTROL agents are found murdered with mysterious puncture marks on their necks. The investigation leads to the mysterious Dr. Drago.

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.

Everyone important in Washington suffers bad dreams and the president orders CONTROL to discover why. At that moment, KAOS' Mad Pharmacist Jarvis Pim appears on TV to demand $50 million in ransom. If he doesn't get it, he'll use his new hallucinogenic drug on the entire population of the city. Max and 99 track Pim to the Dartfoot Spring Water Company, where Pim captures them using "the old mortar in the mortar trick."

Max and 99 go to London to investigate a modern-day Jack the Ripper.

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.

While attending the funeral of the latest Control Agent who was mysteriously killed,Max,99,and The Chief are shocked to find a carved Headstone with Max's name on it.

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.

Max convinces the Chief of taking Fang out of retirement after some Control agents are killed by their own dogs. Each of those agents had left their pets at an animal spa while they were travelling. What they ignored was that the animals were being brainwashed before being returned to their owners. When Fang goes MIA Max disobeys orders and goes after him which causes the Chief to go rescue Max.

Max is following a Kaos agent who is smuggling a parrot. While questioning the parrot he is freed by his lawyer and Max and 99 trail him to a pet shop. Max learns that the pet shop is a cover for Melnick, the Smiling Killer. They learn that the parrots are being used to memorize secret information and then smuggled out of the country.

While carrying plans for a nuclear reactor, Max runs into KAOS Agents, so he must hide the plans. Max later has to pretend to be a convict and go to jail to get them back.

When a Control agent is killed (made to look like an accident) while undercover, Max is assigned to investigate his death and to find out how a man name Frank Lloyd Joshua is causing high-rise buildings to explode.

Max is set to testifie against Kaos Agent Elwood Tudbury.However Kaos is determined to stop him at all cost.

KAOS is going to stop Smart from testifying against one of their agents.

Max and 99 go to Lost Lake to track down the person who is sabotaging missile launches.