Jack Maxwell

Obnoxious 16-year-old chess prodigy Nate is admitted to Princeton-Plainsboro suffering from intense head pain that came on after he attacked his opponent during a speed chess tournament.

The masked woman's shocking announcement leaves Mode in chaos and the dysfunctional Meades at each other’s throats. Meanwhile, Betty tries to keep the peace and Wilhelmina plots her next move. Betty is in for even more turmoil in her love life, as Henry asks her out while Walter tells her he's got a big surprise in store. Back at home, Hilda is miffed when Santos gets involved after Justin is sent home from school for fighting.

Desmond coaxes Charlie, Hurley and Jin on a trek across the jungle after experiencing one of his future-prophesizing "flashes" -- but is he purposely placing Charlie's life in harm's way? Meanwhile, Kate turns to an unwitting Sawyer after seeing Jack alone with Juliet.

Bob's moral conflict over the team's deadly tasks distracts him during a sniper mission, putting the whole team at risk.

After learning that the clinic may lose funding, Kelly asks Brandon to write a story to generate publicity. David believes that Valerie killed her father in self-defense and should move on.

The team searches for Elena's former partner who disappears after an undercover sting operation.