The fourth entry in the series will star So You Think You Can Dance finalist Kathryn McCormick opposite Ryan Guzman and Stephen Boss.
"Emily, the daughter of a wealthy businessman, arrives in Miami with aspirations of becoming a professional dancer, but soon falls in love with Sean, a young man who leads a dance crew in elaborate, cutting-edge flash mobs," the official synopsis reads. "The crew, called the MOB, strives to win a contest for a major sponsorship opportunity, but soon Emily's father threatens to develop the MOB's historic neighborhood and displace thousands of people.
"Emily must band together with Sean and the MOB to turn their performance mobs into protest mobs, and risk losing their dreams to fight for a greater cause."
The film will be helmed by music video director Scott Speer and produced by Justin Bieber: Never Say Never director Jon Chu.
Step Up 4 will be released in cinemas on August 10, 2012.
Watch the trailer for Step Up: 3D below: