More commercials! Joyce Summers is pitching Advil. Four out of five doctors think Advil eases the pain of a fatal brain embolism!

FlashJack! Jack's walking down a corridor with an Australian medical examiner, who's telling Jack his father drank himself to death. Or at least gave himself a myocardial infarction -- "a sizable and fatal heart attack," the examiner says. Isn't it a little weird that the ME is explaining an MI to an MD? He takes Jack to a walk-in fridge, not unlike the one I used to sneak into when I worked at Kopp's Frozen Custard in Milwaukee, Wisconsin, in order to sneak handfuls of pralines. Only this walk-in fridge has, instead of pralines, a dead person in it. Shot from underneath in cold light, with stubble and red eyes, Matthew Fox looks like Tom Cruise in Minority Report. The ME unzips the bag, whacking Jack's dad's nose in the process. A weeping Jack acknowledges that yes, that's his father.

Back at his late-night fire, Jack's crying again. Behind him, a branch snaps and we hear ice cubes rattling. Huh: obviously this isn't just a hallucination -- there's something corporeal out there. These scenes sure make me hope the writers are awfully creative to come up with an explanation for all this stuff that doesn't seem like grade-A baloney. Jack pulls a handy perfectly-formed and -fueled torch from the fire and takes it into the jungle with him. A search leads him to a nice-looking waterfall and pool. Don't drink the water, Jack! You'll get leptospirosis! A creepy white-faced doll sits at the bottom of the pool, staring up at him. He follows a path of similar dolls to a pile of wreckage, including what appears to be a chunk of a plane, sitting near the mouth of a cave. We get a number of extremely dark shots of wreckage, most of which I'm sure are meant to show some interesting set design detail but on my crappy TV come out as black blobs. I want to get HDTV, so I can see how bad local news anchors really look. Jack sees a coffin lying amid the wreckage, and it's time for another FlashJack!