Kitty returns to LA to interview for a political based TV show and to visit her family.
Sarah and Joe both face a big challenge when they discover that something may be wrong with Paige.
Justin's resolve to stay clean is shaken by a disturbing letter from the US military requesting that he go back and join them.
The Walker family attends Family Day at Justin's rehab facility.
Clark is shocked to discover that his neighbor Jed McNally (John Novak) is holding migrant laborers captive and forcing them to work on his farm. Feeling guilty since he sees himself as the ultimate illegal immigrant, Clark seeks help from Martha to allow a young boy and his mother to stay in the country.
