Jaina Lee Ortiz & Boris Kodjoe promise more intimacy, trust issues and a ‘dirty rollercoaster of emotions’ when the Seattle Fire Department and Grey Sloan Memorial Hospital connect. Hosted by anchor Ben Mulroney with anchor Danielle Graham (on maternity leave), anchor Lainey Lui and senior correspondent Traci Melchor, reporters Chloe Wilde, Tyrone Edwards, Sonia Beeksma …