In Season Three of Breaking Bad, Hector Salamanca brutally demonstrates to his young nephews that “family is everything.” The sentiment is reciprocated later by his nephew Lalo in Season Five of Better Call Saul when he vows revenge against Gus Fring.
Better Call Saul is not a traditional family show, but at its core it is a show about family, specifically the disintegration of the toxic McGill/Wexler family that leads to emergence of Saul Goodman. But there is also the corporate family represented by Howard Hamlin, the Cartel, and tying everyone together is ex-cop Mike Ehrmantraut, a man so fiercely protective of his family that he will go to any lengths to keep them safe.