'The Good Doctor' Returns for Season 5 MONDAY SEPT 27 10/9c on ABC

"The Good Doctor" returns with an all-new episode MONDAY SEPT 27 10/9c on ABC, following an all-new episode of "Dancing with the Stars." Shaun and Lea's upcoming engagement party has everyone in a festive mood after their return from Guatemala on the season 5 premiere of "The Good Doctor," MONDAY, SEPT. 27 (10:01-11:00 p.m. EDT), on ABC. Episodes can also be viewed the next day on demand and on Hulu. You can catch up with full episodes of "The Good Doctor" season 4 on ABC.com, in the ABC app and on Hulu. And relive some of the show's biggest moments by watching the Latest Clips.

VIDEO: Your first look at the Season 5 premiere of "The Good Doctor"

Also in the episode, 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. Guest starring is Rachel Bay Jones as Salen Morrison. The episode, titled "New Beginnings," was written by David Shore and Liz Friedman, and directed by Mike Listo.