Kitty Walker returns home to California after having been estranged from her mother for three years, and William Walker brings Sarah into the family business.
Kitty finds herself torn between two men, Justin's new job is more than he bargained for, and Sarah and Joe face their greatest challenge yet as parents.
The Walker family airs its dirty laundry in Justin's rehab group therapy session, and Kitty considers a tantalising proposition from Senator McCallister.
The contents of a letter, that could dramatically alter his future, shake Justin to the core, weakening his resolve to stay clean.
An illegal immigrant comes to Clark for help, escaping from the nearby farm with a dark secret, where he happens to be working.
