India, July 19 -- Bridget Moynahan is going back into the world of courtroom drama: this time in Boston. She is all set to reprise her fan-favorite role as Assistant District Attorney Erin Reagan from Blue Bloods for CBS' upcoming offshoot Boston Blue. She will feature in the premiere episode of the new series that comes out on October 17, Deadline reported.

This marks the first official crossover appearance by a Blue Bloods main cast member in the new series which follows Donnie Wahlberg's Danny Reagan as he leaves the NYPD for a new chapter with the Boston Police Department.

The Deadline report stated that Wahlberg, who plays the hot-headed detective and Erin's older brother, shared the news with a nostalgic Instagram post featuring t...