The story is narrated by the family's oldest son Paco. It opens with José Sanchez, the family patriarch, setting out on a year-long trek on foot from Mexico to Los Angeles to reconnect with a distant relative born when the city was still part of Mexico. This unlikely friendship with El Californio blossoms into a shared dream of starting a corn farm, a plan that endures for years. As El Californio’s health wanes, he requests a stark tombstone inscription to mark what he believes the land still is: when he was born, this was Mexico, and where his body lies, this is still Mexico. The tale then follows José as he grows closer to María, an American citizen whom he eventually marries. After María is forcibly deported to Mexico in a broad roundup, she undertakes a grueling journey back to Los Angeles two years later, returning home with their newborn son Chucho.
Twenty years pass, placing us around 1958 or 1959, when [Irene] is about to be married. Chucho and Paco have come of age, and the Sanchez household welcomes new members, including Toni and the brothers Jimmy and Guillermo “Memo.” The wedding scene sets a new tempo for the family, but trouble soon arrives. At a dance hall, Chucho confronts his rival, a knife fight erupts, and Chucho kills him, forcing him into a fugitive existence. The violence escalates when, one night, [Chucho] is fatally shot by the Los Angeles Police Department in front of a young Jimmy, a moment Paco describes as Chucho’s life living on borrowed time.
The narrative then leaps forward to the third generation, set in the 1970s and 1980s, where themes of acculturation, assimilation, and long‑standing family wounds take center stage. [Jimmy] returns from a stint in prison, his personality hardened, while Toni and her husband David Ronconi work to aid political refugees. They become involved with a Salvadoran refugee named Isabel Magaña, who faces deportation. Toni persuades Jimmy to marry Isabel so she can stay in the United States, a union that gradually softens Jimmy and helps Isabel feel at home. A tender moment arrives when Isabel changes the music in Jimmy’s car and asks him to teach her salsa, signaling a real connection between them. Isabel later becomes pregnant but dies after giving birth to their son, Carlitos. Enraged, Jimmy attacks the doctor, burglarizes a store, and is arrested, leaving their child to be raised by his parents. When Jimmy is released four years later, he longs to connect with his son, who nonetheless harbors a rocky sense of who his father really is.
Meanwhile, José and María’s middle son Guillermo—often called Memo—pursues a professional path, attending college and, over time, presenting himself as William. Memo becomes engaged to Karen Gillespie, a woman from an affluent Bel‑Air family. The family’s dynamics grow tense as Memo challenges Jimmy’s rough-edged past, yet Jimmy decides to turn his life around. Carlitos eventually moves with him to Texas, where Jimmy secures a solid manufacturing job in San Antonio, marking a new chapter for the family’s migration story.
The film closes with José and María reflecting on a life built through perseverance and luck. As the years flash by, Jose sums up the journey with quiet gratitude: “God has been good to us, we've been very lucky, and our life it has been very...very good,” a line that lingers as the camera slowly pulls back to reveal Los Angeles, the city that witnessed their long, winding story.