Alexi Sebastian, a master impersonator, attempts to kill someone who was about to reveal the secret of the KAOS coding system. Alexi disguises himself as the Chief to confuse the situation even more.

Max and 99 must guard Tanya Lupescu, who has memorized KAOS' codebook. An attempt to hide her in a hotel fails, so CONTROL decides to hide her in Max's apartment. KAOS hires master impersonator Alexi Sebastian to kill Lupesco. Sebastian has successfully disguised himself as Johnny Carson and Max's Aunt Rose, so CONTROL has him listed as a 101 - shoot on sight. Sebastian disguises himself as the Chief and gets inside the apartment, but the real Chief shows up and Max is confronted by two Chiefs. Can Maxie pick the correct Chief?

CONTROL couriers are aboard the Orient Express are being murdered in order to prevent them from delivering important information. Max and 99 get into a sticky situation while trying to solve the mystery.

KAOS is interested in capturing Dr. Shotwire, a brilliant scientist whose work has been set 6 months back thanks to his bodyguard's helping hands (no other than 86). The KAOS agent in charge of the kidnapping, Natz, also has a vendetta with Max who sent him to prison in the past. Natz's plan involves the latest creation of rogue Dr. Ratton: Hymie a humanoid robot who enters Control as a newbie agent. However no one knows what to expect when Hymie has a drink and gets some quality time with Max.

A horde of KAOS agents are taking flights to Washington. Each one carries a piece of a bomb which is meant to explode near an American base. Max and the Chief capture one of KAOS's agents and fool-force confidential information out of him. They end up in Blue Mist Mountain and it's up to 86 to dismantle the bomb before it goes off. All the help he has is Parker on the shoe-phone, a coin, and a very expensive tie.

Max and the Chief disguise themselves as concert critics as they go in the aid of Hubert, a violin virtuoso who has been working undercover to find the identity of KAOS's Big Boss. Just before Hubert is able to give his report he is killed but first hides a clue in the form of writen music. Max must then stop pianist Wolenska from being killed by a bomb planted in the piano on which he will perform Hubert's last symphony, a desperate attempt of the Big Boss to keep his identity secret.

Ahoy mate! Max's new assignment has him in a boat where he must find the blueprints of a super weapon while watching his back from a mysterious killer who makes a peculiar clip-clop sound, which is not that much help as every single passenger and crew member make that sound.

99's quick and clever reactions save Max from drowning. Back on the ship, Max talks with the captain who offers his assistance after finding out the reason he can never understand his aide. To make matters worse, 44 has finally had it. Not only Max cracks his super secret message, but he's tired of working hidden, not being able to eat at the captain's table, it's a boring job... As if it wasn't bad enough, he gets shot and Max finally discovers who the killer is, though it may be too late for him.