Street Dance 3D 2010 follows a London street dance crew reeling from the departure of their leader Jay. Carly steps up as the new leader but struggles to keep the crew together. They lose their rehearsal space. Carly meets Helena a ballet teacher who offers her studio in exchange for incorporating ballet dancers into street dance routines. The two groups clash due to different backgrounds and styles. They begin to appreciate each others talents forming a blend of street and ballet. The journey includes setbacks betrayal and interpersonal conflicts. Carlys determination and Helenas guidance help them overcome challenges. At the Street Dance Championships the crew performs a groundbreaking routine showcasing unity and collaboration.