Fox has renewed Prison Break through the 2007-08 TV season, the show's third. The series is the highest rated program in adults 18-34 and comes in second with adults 18-49, according to Variety.

Executive producer Paul Scheuring said his team had been proceeding with this year's season finale cliffhanger and had already mapped out much of season three when they received the firm pickup Tuesday.

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"We already knew where we were going," he said. "Most of the major players are returning, but it will be a reconceptualization again, just like it was in season two."

Prison Break, from 20th Century Fox TV, launched in 2005 as a drama about a man (Wentworth Miller) who stages a bank robbery in order to land in prison, where he believes his brother (Dominic Purcell) has been wrongfully convicted of killing the vice president's brother. The two staged their escape at the end of season one; this year, they've been on the lam -- and hunting for $5 million hidden by famed skyjacker D.B. Cooper.

Season three's storyline will expand internationally; the show also plans to add at least four new cast members -- two men, two women, none American. Casting likely will take place in May.

Prison Break will continue to shoot in Dallas next season (having moved there this year after filming the season one prison-set episodes outside of Chicago). But crews will spend more time shooting in Florida and Louisiana, Scheuring said.

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