In this FX channel series, acerbic comedian Denis Leary plays Tommy, a firefighter whose job requires him to be at the ready to save other people's lives, even as his is falling apart. Tommy's marriage is in a complete shambles now that he's divorced; he doesn't see his kids every day; and his sanity is on the brink. And when his ex starts dating again, Tommy decides to move across the street from her ... just to complicate his life even more.