Ximena and Callie are still in the church seeking sanctuary from ICE. The Adams Fosters' offer their support to the Sinfuego family as they struggle with their immigration status.
Callie actively helps to make Ximena's fight visible. Meanwhile, Brandon and Grace struggle to be intimate knowing her diagnosis and Mariana is suddenly courted by multiple suitors.
Stef confronts her demons and finally comes clean to Lena about what's been troubling her. Mariana and Emma find themselves going head to head, putting Poppy and Jesus in an awkward position.
Brandon and Grace go on a road trip and discover a lot about each other; Mariana and Emma vie for a competitive internship; Stef and Lena go on a couples retreat to reconnect.
The family travels to Turks and Caicos for Brandon and Eliza's wedding, where they find themselves at odds with their future in-laws; when Brandon and Eliza butt heads, Brandon turns to the person who knows him best.
In the series finale, the family starts to wonder about the wedding after a few turbulent days in Turks and Caicos. The moms make a momentous decision that will change the family forever.