Luis Javier

Still distraught over her breakup with Clark, Lana experiments with a dangerous serum that allows her to flatline and see her deceased parents again. A worried Clark rushes to save Lana from hurting herself but ends up being injected with the kryptonite-laced serum by an arrogant medical student. When Clark flatlines, he is able to talk to his dead father, who warns him that Lionel knows his secret. Meanwhile, Lionel continues to get closer to Martha.

Madison and Travis see different sides of the National Guard's occupation in their neighborhood; the family tries to adapt to the new world.

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.

Chance reunites with a fiery former flame when he is called to South America to rescue an archeologist whose discovery of a lost treasure makes him the target of a deadly bounty hunter - and a South American army. Guest stars include KRIS MARSHALL (My Family, Murder City) as Doug, KIM COATES (Sons of Anarchy, Prison Break, CSI: Miami) as Bertram and LEONOR VARELA (Cleopatra, Where God Left His Shoes, Innocent Voices) as Maria.