Owen makes a decision about his future. Tommy receives devastating news. T.K. and Carlos worry about adopting Jonah. Mateo gets his immigration status threatened after an altercation. A doomsday prepper gets trapped in a bomb shelter and The 126 and all of Austin brace for an asteroid crash.

Cast: Rob Lowe, Gina Torres, Ronen Rubinstein, Jim Parrack, Natacha Karam, Brian Michael Smith, Rafael Silva, Julian Works, Brianna Baker, Skyler Yates, Kelsey Yates, Jackson Pace