Alliances and loyalties are tested as Joe Sandoval assesses the future of his family-run Sonoma Valley wine business. Just a few hundred miles south but a world away, Carlos Rincón and sisters Juana and Rosa Sánchez cross the U.S. border from Mexico in search of a better life.

Margaret has an offer for Carmen. Meanwhile, Joe hires a new general manager, and Veronica is put in a tricky situation.

Father Ramos’ return to Sonoma makes waves throughout the Sandoval family, while Lettie and Joe hit a rough patch. Margaret is excited to be invited to Carmen’s 25th birthday party much to everyone else’s dismay. Young Lettie, Joe and Billy leave town on an important mission.

Joe reluctantly accepts Father Ramos’ help. Lettie spends the day with Daniela, while Mateo finds an unexpected business partner in Carmen. Veronica uncovers more about Michael. Young Joe and Billy encounter a visitor from their past

Joe’s award ceremony is interrupted, and Mateo makes an important decision. Meanwhile in the past, Billy and Lettie try to keep their relationship a secret.

In the midst of a battle between Margaret and his own kids, Joe makes a shocking realization. Meanwhile in the past, Joe finally finds a way to defeat Honeycroft, and Lettie makes a tough decision