More clues surface surrounding the fire that killed Shay,leading Severide to a most unexpected source who may be able toprovide pertinent information. Meanwhile, Shay’s sisterMegan comes to town, prompting members of the firehouse toremember Shay’s life. Elsewhere, Cruz is in for a surprisewhen Otis’s grandmother moves into their apartment, whileBoden finds a way to help his dying father make the most of hislast few weeks.
