There will likely be no flesh-eating bacteria for this crossover, but lives will still be very much at risk, as they generally are when the firefighters of Firehouse 51 cross paths with the cops of Chicago P.D. This two-parter brings back none other than P.D.’s Sean Roman, who departed back in P.D. Season 3.
Chicago Fire will cross over with its original spinoff series in the 9 p.m. ET slot on February 26 with “Off The Grid.”