Who knew that one particular squirrel brought the whole circus to panic? Circus Zaragoza train to Chicago got sabotaged by something, or rather someone. Now a young adult, Alex knew someone could help with their case. Skipper, who decided to let Alex lead the circus and return to zoo life, was recently in a New York City zoo. The zookeepers were replaced with Alice, a highly invulnerable woman who doesn't go down quickly. Her recklessness could help Gia and Alex, who would return to ask for the penguins' help. Marleen got herself involved when she saw the two entering the circus. Luckily, due to Alex's relationship with his old friends, Burt decides to help those two get what they need. Some old zoo animals, like Burt, know who Alex and his friends are, and some have long forgotten them, like Bada and Bing. Veteran animals would be happy to meet Alex, the former star of the zoo, and his girlfriend. Would Alex and his circus friends succeed in capturing the culprit and repairing their train, or would they get caught by the second antagonist, Officer X? We are about to find out now as we enter their adventures in New York City. [DreamWorks Animation owns the Madagascar franchise.] [Warning! The story contains violence, strong language, and other mature themes. Viewer discretion is advised.]