Boston Blue 1×12 Promo “St. Patrick’s Day” Donnie Wahlberg Blue Bloods spinoff

Boston Blue 1×12 “St. Patrick’s Day” Season 1 Episode 12 Promo – Danny, Sarah and Lena race to stop a looming threat on St. Patrick’s Day; homesickness sparks a family gathering; Lena’s personal life takes a hopeful turn.