Shaun and Lea's upcoming engagement party has everyone in a festive mood after their return from Guatemala. Meanwhile, a young single mother learns her son may have contracted his cancer from a surprising source, and Mateo finds out if his previous issues in America will be resolved.
Stars: Freddie Highmore, Fiona Gubelmann, Will Yun Lee
Director(s): Mike Listo
Writer(s): David Shore, Jae-Beom Park, Liz Friedman