The character of Mia would be the third cast member from Rob Cohen's original to join the cast of the Justin Lin-directed sequel.
According to the site, when the film begins, Brian (Paul Walker) has been doing time - after the authorities discovered the truth about Dominic's disappearance, and the part Brian played in that. Brian makes a deal with the authorities. He'll help stop a crime boss known as Braga, whose importing heroin, if they agree to free him. With the assistance of an informant named James Park, Brian wins a spot on a street race that Braga's "number #1' man, Jorge Campos is going to be at. He makes friends with Campos (and therefore Braga); wins a spot on his tag-team (importing heroin) and gets Dominic a gig too.
The Fast and the Furious 4 arrives in theatres on June 5, 2009.