For more detailed breakdowns of the episode's tropes and plot points, you can visit the TV Tropes Recap . 9-1-1 S3E17 "Powerless" Recap - TV Tropes

The sequence is terrifying. Because of the blackout, the 118 and Maddie are forced to listen to her radio as she is pummeled, unable to reach her in time.

### The episode doesn’t let you catch your breath. It ends on a massive cliffhanger with a train derailment.

The final seconds reveal the voice of the emergency services caller to be none other than Abby Clark (Connie Britton), marking her first appearance since the Season 1 finale. It’s a perfect shock-value ending that sets the stage for an explosive season finale. Verdict