Moonlight Serenade
performed by Glenn Miller

Jack is imprisoned in the Hydra, an underwater Dharma Initiative station, and interrogated by an Other named Juliet. Kate and Sawyer are kept in nearby cages. Sawyer tries to escape with a teenage Other named Karl, but they are caught. "Henry Gale", whose real name is Ben, is revealed to be the leader of the Others. In flashbacks, Jack obsessively tries to find out who his wife Sarah is having an affair with during his divorce settlement. Jack suspects his father and attacks him at an Alcoholics Anonymous meeting. Jack is arrested and bailed out by his wife.

When Sun is mysteriously attacked, tension builds between Jack, Locke, Kate, and Ana Lucia regarding the guns. It is revealed that Sawyer and Charlie had conned them all as a means for Sawyer to gain control of the guns and Charlie to get revenge on Locke. In flashbacks, Sawyer reluctantly cons a woman he develops feelings for.

A tale of delinquent and lazy school girls. In their efforts to cut remedial summer math class, they end up poisoning and replacing the schools brass band.