The Enterprise investigates a planet visited 100 years ago by the U.S.S. Horizon. Kirk, Spock, and McCoy beam down and find themselves in a culture similar to Earth gangs of 1920 Chicago. They are quickly taken prisoner by men in the employ of a mob boss named Bela Oxmyx, who wishes them to give him phasers in exchange for "a piece of the action." When they refuse, Oxmyx puts them under guard. Kirk creates a diversion with a card game called "fizzbin," but without their equipment, the trio must find a way to unite the planet and escape to the Enterprise alive. Written by
Did You Know?
originally had an idea for an episode titled "President Capone" in which the Enterprise crew land on a planet which is a parallel version of 1920s Chicago where Al Capone
is president. George Clayton Johnson
later developed the idea into an outline titled "The Syndicate" which later became a treatment titled "Chicago II". The concept was abandoned until producer Gene L. Coon
found the treatment and worked on a script with David P. Harmon
titled "Mission Into Chaos". See more
When they arrive on the planet, Kirk, Spock, and Bones notice a woman walk by wearing a gray miniskirt. Later, when they are confronted by Oxmyx's men, the same woman is seen walking behind them. In the very next shot, she is seen walking across the street. See more
Mr. Oxmyx, this is Mr. Spock.
[using a stolen communicator
Huh? Hey, how'd you get back up there?
Irrelevant, since we are here.
Huh, yeah. Hey, you better come on back down. Krako's put the bag on your captain.
Why would he put a bag on our captain?
Kidnapped him, ya dope. He'll scrag him, too.