The FBI asks the Lightman Group to investigate a terrorist bombing outside Washington, D.C.
Maura yearns to forge a new relationship, but she finds that the connection is strained; Ali is drawn to rejoin her family; Josh tries to shoot a gun in the desert.
Sarah and Len divert a family outing to visit Lila's mom; Ali breaks off from the group to visit a friend; members of the family engage in questionably authentic tourism.
Sarah tries a new parenting style, which surprisingly works; Josh reconnects with Dr. Steve; Ali, drawn in by an intriguing new friend, travels to Palestine; Maura makes a life-changing discovery about her family history.