ABC World News Tonight With David Muir

The 126 race into action when an armored truck is hi-jacked; Owen grapples with his brother’s death; Carlos begins a new job; a familiar face joins the call center.

The 126 are called into action when a train derailment injures multiple victims; Tommy makes a bold move in her relationship as Judd hopes to get his old job back.

The 126 try to contain a toxic cloud of death unleashed by the train derailment.

The 126 race into action to a hoarder’s rat-infested house.

A horse barrels into a brewery with an unconscious rider.

The 126 race to save a man crushed under a vending machine; Owen finally faces his brother’s death as Nancy faces a health scare.

TK gets a huge surprise on his 30th birthday; Tommy is determined to push through her latest crisis; Wyatt attempts to talk down a suicidal caller.

Carlos gets a lead on his father’s murder; TK contemplates a major life decision as Owen leads the charge to cover Austin’s first responders’ medical care.

Owen is offered a life-changing opportunity; Carlos is detemined to solve his father’s murder; Tommy begins treatment as judd gives into his demons.

Owen questions Judd's sobriety when he literally walks into the line of fire; Marjan introduces her boyfriend to her parents.

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.

The 126 Deal with the asteroid impact on Austin.