 Michael finds Locke teaching Walt how to use a knife. Being overprotective as always, Michael bans Walt from going near Locke. Walt runs away and is trapped by a polar bear, which causes Michael and Locke to team up to save him. Flashbacks show Michael dealing with his ex wife, Susan (Walt s mom) and showing her leaving him and taking Walt with her, and Michael ventures to Australia after learning of Susan s death to meet the 10-year-old Walt to bring him back to New York. Meanwhile, Charlie is tempted to read the missing Claire s diary. Also, Sayid continues to ask for Shannon s help to decipher the French woman s maps of the island.