The season spans 18 episodes, beginning with a massive elevated train crash that forces the Gaffney Chicago Medical Center staff to immediately prove their mettle. Chicago Med: Season 1 | Reviews | Rotten Tomatoes
: The series premiered strong with 8.6 million viewers, tying with NCIS as Tuesday's top scripted show at the time. Season Highlights & Plot Points Chicago Med - Season 1
: 50% Tomatometer (Critics) and a 71% Audience Score. Metacritic : Metascore of 52 (Mixed or Average). TVLine Reader Grade : "B+" average. The season spans 18 episodes, beginning with a