Reem is the savvy promoter, Flizzo the undefeated local legend, Jay Donn the innovator with the talent to carry him far away from home, if he can learn to work with the outsiders who want to take him there. What unites them: a competitive dance form of Narrative tic contortions, simulated violence, seamlessly flowing footsteps and the occasional humorous touch. Welcome to the world of Flex. Schoo and Nichols travel to the edge of both Brooklyn and street performance for this portrait of a rapidly growing local dance style. -HR