The lives and careers of four Asian-American rappers trying to break into a world that often treats them as outsiders. Sharing dynamic live performance footage and revealing interviews, these artists will make the most skeptical critics into believers.
Ryan and Kevin and their crew from Los Angeles are hired by U.S. Interpol to be matched up against the notorious Gambler Crew from South Korea, known to the b-boy world as the best of the best. Their mission is to gather information about Tony Kai, an "ex yakuza" member who controls the Asian underworld in the United States. Tony Kai is in South Korea planning a worldwide monopoly on drugs, sex, and gambling. Ryan and Kevin struggle as they go deeper into the Asian underworld. Ryan falls for a beautiful Korean girl named Esther who happens to be the sister of "Kicker", the leader of the mafia-run Gamblers crew. Their love is put to the test as the rivalry between the two crews escalate. As reality sets in, the crew from LA is no match against the world champion Gamblers crew in the Mach 1 competition. Ryan, Kevin and the crew go into hiding where they meet an underground b-boy legend...
O filme começa mostrando o grupo Mr Children formado pelos agentes Hee Moon (Kim Su Ro – o Tae San do F44 de A Gentleman’s Dignity) e pela Goo Joo (Park Ye Jin – a vilã de My Princess e protagonista de I Love Lee Tae Ri). Infelizmente por conta de uma tragédia o grupo acaba e Goo Joo vai para Estados Unidos. Depois de anos, ao voltar para a Coréia resolve formar novamente um grupo de garotos, mas desta vez sem a influência do Hee Moon que passa ser uma espécie de rival, já que também está promovendo um grupo novo (esse tal grupo é formado pelos garotos do U-KISS \o/ \o/).
