Grace is accused by Hebba, an Arab-American female student, of letting her individual beliefs about religion color her lectures. Taking offense, Grace chastises Hebba in front of the class, which leads to a boycott of Grace's classes by the religious groups on campus. Meanwhile, after helping Warren with his bar mitzvah and learning a bit about Judaism, Bobby demands to know why Grace never took him to church. Completely thrown by the accusations, Grace must explain to Bobby & Hebba what "faith" really means to her. Also, Jack helps Marcus out of tough situation.

Uh oh. Bobby becomes suspicious of Grace's relationship with Tom after Tom coincidentally shows up during a camping trip. While Jack and Missy's relationship seems to be dying a slow death, Courtney's dating life is picking up steam with college freshman Nate. The future reveals that President McCallister, despite risks involved, supports space travel to the planet Mars.

Jack and Bobby discover that Grace plans to visit their father, Juan, in a Texas prison. Bobby insists on joining her and the three embark on a spontaneous road trip, where Grace is forced to reveal the shocking reason their father is in prison. The future reveals Jack's heartbreaking fate and details Bobby's unlikely road to the Presidency and, for the first time, we hear the voice of President McCallister.