Ranked #2 of 3 in Season 2•+0.8 vs season avg
As Danny and Lena follow a promising lead in the attack on Detective Rodgers with the help of her father, they find themselves in an intense standoff with a dangerous biker gang. Meanwhile, Mae faces renewed pressure from political rival Thad Longfellow, Sean and Jonah
Donnie Wahlberg
Det. Danny Reagan
Sonequa Martin-Green
Det. Lena Silver
Ernie Hudson
Rev. Edwin Peters
Maggie Lawson
Supt. Sarah Silver
Gloria Reuben
DA Mae Silver
Marcus Scribner
Ofc. Jonah Silver
Mika Amonsen
Ofc. Sean Reagan
Emily Mitchell
Katie Larson
Sherwin Shilati
Director
Terence Paul Winter
Writer
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"Ripple Effect" is episode 2 of Boston Blue season 2. It scored 7.7/10 from 66 votes, ranking #2 of 3 episodes this season (season average 6.9). Directed by Sherwin Shilati and written by Terence Paul Winter, it aired on October 16, 2026.
