Jamie partners with the FDNY to find the arsonist responsible for a massive fire at an NYPD evidence storage facility. Also, Danny and Baez feel the ripples of the storage facility fire when all the evidence against a cartel leader Danny brought to justice is destroyed. Anthony asks Erin to let him lead on a murder case when his friend is killed, and Eddie asks Frank to put her on modified duty following her divisive arrest of an anti-cop protestor at a rally.