During a harrowing call to a structure fire, Herrmann rescuesa trapped toddler, but the questionable circumstancessurrounding the event sends him on a personal mission to locatethe father and get to the bottom of the situation. Severidemakes up for lost time by retracing key friendships from hisadolescence, while Mills discovers some surprising news.Elsewhere, Cruz and Brett's relationship comes to a crucialjuncture, while Otis develops some unexpected feelings.
