EXCLUSIVE: Former Prison Break co-executive producer Zack Estrin is reuniting with the Fox drama’s creator Paul Scheuring. Estrin has extended his deal with ABC Studios, and nder the pact, he will join Scheuring’s new series, ABC’s Zero Hour, as an executive producer/showrunner. This marks Estrin’s third consecutive gig on an ABC/ABC Studios series — he also served as a co-executive producer on No Ordinary Family and executive producer on The River this past season. Zero Hour stars Anthony Edwards as a man who, after spending 20 years as the editor of a skeptic magazine, becomes involved in one of the most compelling conspiracies in human history. Estrin will serve as an executive producer on the series alongside creator Scheuring, Lorenzo DiBonaventura and Dan McDermott.