Anson Mount and the cast of Hell on Wheels give us a taste of what's in store for season 3.

From "Blue Jasmine", actress Cate Blanchett; from "The Talk", co-host Aisha Tyler; musical guests Franz Ferdinand.

In a case that brings gang violence and social profiling to the forefront, the squad realizes that things are not always as they seem. Complicating matters further, Sharon offers Jack the opportunity to be a court-appointed attorney in the case. Meanwhile, Rusty expresses apprehension about meeting Kris' parents.

Savi wants to fight for her relationship with Harry, even if the baby is Dom's; April is still reeling from the revelation that her supposedly dead husband, Paul, is actually alive; Karen is surprised when Sam hires her business partner as his therapist and seeks out his mother, Elizabeth, to express her concern; and after an uncomfortable run-in with Alex's ex, Joss wants to redefine her relationship with Alex.

Muscle Man wants to binge on his favorite foods before going on a diet.

Kate Middleton delivers her baby, Geraldo Rivera tweets a naked selfie, fast food workers protest the minimum wage, and Kjerstin Gruys examines body image issues.

A visit from Lena's beautiful and sophisticated ex-girlfriend reveals a secret yearning Lena has hidden from Stef for the past ten years. Meanwhile, Brandon struggles to please his demanding new piano teacher and rebuffs an offer from Talya to reconnect. When an embarrassing video of Talya circulates around the school, Callie lends her support and urges Brandon cut her some slack. Mike's drinking and Stef's mounting concern do not go unnoticed at the precinct. Mariana and Jesus go to tell Ana to leave Mariana alone. The encounter with his birth mom and her desperate situation drive Jesus to take matters into his own hands, a move that could have dire consequences for the whole family.

Actress Brooke Shields; talk with and performance by musician Sara Bareilles.

The Chester's Mill residents receive an unexpected visit from their loved ones on the other side. Meanwhile, the community braces for a threat from outside the Dome.