"Yee Haw" is the second episode of the first season of 9-1-1: Lone Star. It aired on January 20, 2020.


The crew races to a disaster at a wave pool, and an outbreak of mercury poisoning that is leaving its victims in a zombie-like state. Meanwhile, Owen must come to terms with his illness and what the side-effects of treatment may do to his vanity. Also, Michelle follows a new lead on her missing sister while TK is unsure how to handle his budding relationship with Carlos.[2]



Guest Starring

  • Lourdes Benedicto as Curandera
  • Alex Fernandez as Tom Carver
  • Patrika Darbo as Ellen
  • Jack Plotnick as Howard Dalton
  • Ginifer King as Dr. Barbara Jacobs
  • Joshua Bitton as Police Officer
  • Brianna Baker as Nancy Gillian
  • Mark Elias as Tim Rosewater
  • Ken Kirby as JT
  • Miguel Pinzon as Isaac
  • Juan Alfonso as Hector
  • Omar Leyva as Gustavo


  • Robert Arce as Old Man
  • Felix Alonzo as Tico
  • Salome Azizi as Dr. Kelsey Akopian
  • Aiden Bertola as Tomas
  • Shireen Crutchfield as Attractive Woman
  • Aaron Hendry as Delivery Guy
  • Stacy Highsmith as Liza
  • Jeremy Shouldis as Man


  • Although the press release says there was an incident involved at a wave pool, it was not shown in the episode.


  • Michelle giving the boy the asthma medicine was not done properly. Instead of giving two quick puffs, one should shake the puffer to make sure the medicine is active, then give one puff, wait for a moment, then give the second puff.
  • Owen's lung cancer, being stage 1B, would be treated by surgery or radiation, not chemotherapy.



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A Problematic Neighbor Gets A Surprise She Wasn't Expecting Season 1 Ep. 2 9-1-1 LONE STAR


ve 9-1-1 Episode Guide
Season 1 "Pilot" • "Let Go" • "Next of Kin" • "Worst Day Ever" • "Point of Origin" • "Heartbreaker" • "Full Moon (Creepy AF)" • "Karma's a Bitch" • "Trapped" • "A Whole New You"
Season 2 "Under Pressure" • "7.1" • "Help Is Not Coming" • "Stuck" • "Awful People" • "Dosed" • "Haunted" • "Buck, Actually" • "Hen Begins" • "Merry Ex-Mas" • "New Beginnings" • "Chimney Begins" • "Fight or Flight" • "Broken" • "Ocean's 9-1-1" • "Bobby Begins Again" • "Careful What You Wish For" • "This Life We Choose"
Season 3 "Kids Today" • "Sink or Swim" • "The Searchers" • "Triggers" • "Rage" • "Monsters" • "Athena Begins" • "Malfunction" • "Fallout" • "Christmas Spirit" • "Seize the Day" • "Fools" • "Pinned" • "The Taking of Dispatch 9-1-1" • "Eddie Begins" • "The One That Got Away" • "Powerless" • "What's Next?"
9-1-1: Lone Star Episode Guide
Season 1 "Pilot" • "Yee-Haw" • "Texas Proud" • "Act of God" • "Studs" • "Friends Like These" • "Bum Steer" • "Monster Inside" • "Awakening" • "Austin, We Have a Problem"
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