an eko centric episode the . explore the aftermath of the tragic event that rock the castaway in the previous one . a the main character john and locke and sawyer and kate and hurley come to term with the incident in the hatch and locke and eko set out to find out where henry take off to . a it turn out eko be on a mission of his own try to figure out the symbol . which locke have draw on his sketch . we see flash of eko life in sydney a a priest who come in contact with his brother through a stranger . we also witness the tragedy that strike the hatch boil down to a room temperature a michael continue to remain a mystery . an excellent lost episode with many interesting turn .