With the abduction of Walt fresh on their minds and their raft destroyed, Michael, Sawyer and Jin fight for their lives and discover a new predator in the roiling ocean.

Meanwhile on land, Locke must descend into the hatch when one castaway goes missing inside.

original airdate--September 28,2005        rating--23.17 million

songs--"Main Title" (Composed by J.J. Abrams)

1. "Make Your Own Kind of Music" by Cass Elliot

Flashback: Michael Dawson

Trivia--The World Trade Center Twin Towers can be seen out of the window of the office in Michael's first flashback.