Kate Austen gets the spotlight treatment in “Tabula Rasa,” but storylines are advanced for Sawyer, Michael & Walt, and others. It’s a quintessential Season 1 episode, touching on every main character’s emotional arc.

• While sewing up Marshall Edward Mars’ incision after surgery, Jack discovers a copied picture of Kate’s police mugshot in Mars’ jacket. He knows now that she’s the criminal. Hurley later finds this paper, so he knows too. Hurley tries repeatedly to get Jack to ask Kate about what she’d done that was against the law, but Jack is insistent that it’s none of their business.
  
• The group with the transceiver returning from the mountain camps in a clearing for the night, in order to avoid the monster in the jungle. They discuss the transmission from the French woman that they overheard, but Sayid convinces them not to share that information with any of the other survivors, in order to not take away their hope. The next morning, Sayid announces this lie to the entire group of survivors. Kate takes Jack aside and tells him the truth about the French woman’s distress call.
  
• Boone steals Sawyer’s gun in the night, he says in order to properly stand guard while the group with the transceiver is returning to the beach. The others refuse to allow it, insisting that Kate should hold onto the gun instead.
  
• While salvaging the wrecked plane for medical supplies, Jack encounters Sawyer, who’s started hoarding supplies from the dead passengers’ luggage. Sawyer tries to convince Jack not to use the medicine he’s scavenging on Mars, who Sawyer says is dying, because it would be a waste.
  
• Charlie strikes up a friendship with Claire. He also attempts to become friends with Locke, which doesn’t go as smoothly.
  
• The island suffers from another sudden rainstorm.
  
• Kate checks on Mars, and her presence rouses him into suddenly choking her. Jack finds them and breaks it up. Jack tells her that Mars has three or four days of suffering ahead of him before he dies, and Kate tries to convince him to put the man out of his misery, but Jack refuses, telling her he saw her mugshot, and unlike her, he’s not a murderer.
  
• Walt tells his dad that Locke told him a secret: a miracle happened to him. Michael is dubious of Locke and warns Walt to stay away from him. He reiterates his promise to find Vincent for Walt. Later, while searching the jungle for the dog, Michael hears a large, angry animal start to chase him, so he runs. Without realizing it until it’s too late, he runs right into Sun, who’s bathing alone, and topless. He makes a hasty, awkward exit.
  
• Mars’ cries of anguish fill the beach camp that evening, causing everyone distress. Sawyer approaches Kate while she’s alone and tries convincing her to give him the gun back so the Marshall can be put out of his misery.
  
• Marshall Mars warns Jack not to trust Kate, then demands to talk to her alone. He asks her what the favor was that she was about to request of him right before the crash. She says she wanted Mars to make sure that the man who turned her in got his reward. He asks her if he’s going to die, and she says yes, so he asks her to end it. Instead, she gives the gun to Sawyer, who does it instead. But Sawyer’s shot misses Mars’ heart and perforates his lung, which will hasten his death, but not by much, and only increase his suffering. Jack is furious, Sawyer is emotional, but as Sawyer is commiserating alone, the Marshall’s cries suddenly stop, and Jack emerges from his tent, alone.
  
• Locke crafts a whistle out of wood and blows into it in the direction of the jungle. Vincent hears the dog whistle’s call and comes running. Locke tethers the dog there to a tree and finds Michael to let him take the credit. Michael is stunned at Locke’s kindness, but appreciatively accepts the offer.
  
• Alone on the beach, Kate offers to tell Jack the whole story about her past as a criminal. But Jack says he doesn’t want to know, that it doesn’t matter here on this island. Everyone gets a blank slate now, a fresh start.
  

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One is an extended promo and the second one is a short promo but seems to have a hidden scene flash for a split second and will that we have added below.

NOTE: No new scenes really in the promos, but they aired during Dancing with the Stars so it focuses on the quadrangle plot a little more and includes scenes from the season.