<P> Nathan seems to have vanished on his way home, Haley goes searching for him and ultimately suspects Dan of having something to do with it . Tara gives Brooke a cockroach - infested flower as a "Face to face friends request", ultimately causing Brooke to destroy Tara's cafe after Tara gets personal in her attacks . Chase continues to feel guilty for sleeping with Tara behind Chris Keller's back . Chase also feels unwanted after Chuck spends all his attention on Keller and later his father, who finally comes back home . Clay checks into rehab, and Quinn spends the day babysitting Jamie & Lydia . </P> <Tr> <Th> 180 </Th> <Td> 6 </Td> <Td> "Catastrophe and the Cure" </Td> <Td> James Lafferty </Td> <Td> Roger Grant </Td> <Td> February 15, 2012 (2012 - 02 - 15) </Td> <Td> 3X7206 </Td> <Td> 1.40 </Td> </Tr> <Tr> <Td_colspan="8"> <P> Dan enlists Julian to help in his search for Nathan . Mouth fills Clay in about Nathan, as Haley explains Nathan's disappearance to Jamie . Brooke gets an idea of how to bring patrons to an empty Karen's Cafe, and Chris Keller confronts Chase about Tara . </P> This episode is named after a song by the band Explosions in the Sky . </Td> </Tr> <P> Dan enlists Julian to help in his search for Nathan . Mouth fills Clay in about Nathan, as Haley explains Nathan's disappearance to Jamie . Brooke gets an idea of how to bring patrons to an empty Karen's Cafe, and Chris Keller confronts Chase about Tara . </P>

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