Explore a city full of LEGO bustling with wacky characters, brought to life on your Nintendo 3DS, and learn the ropes of police work with Chase McCain, donning disguises for special skills when solving missions and fighting crime on the city's streets. You can call up your Scanner from the Touch Screen and move your Nintendo 3DS, utilising the motion sensors, to analyse the LEGO CITY environment for audio or visual clues. On your first job as a cop you encounter the crime kingpin Rex Fury and it's your mission to put him behind bars!
Set about 2 years before the events of Lego City Undercover, Chase McCain, a Lego City Rookie Cop working for the Lego City Police Department, has one objective in his mind: to put the most wanted man, Rex Fury, into Jail. It also has happenings on how Chase got sent away, and how he accidentally revealed the secret witness who came forward to help arrest the criminal.