The 126 go to the scene of a possible terrorist attack while Grace and Carlos investigate a swatter whose actions causes someone to die.
Tropes:
- The Cameo: Athena Grant from the original series makes an appearance as the one who arrests the swatter.
- Cliffhanger: The episode ends on Owen and Catherine about to have make-up sex until they encounter a second “toxic” message, this time with a dead pig on Owen’s bed and a message on the walls reading “TOXIC PIG.”
- Deadly Prank: The game swatter insists what he did was a harmless prank. Said prank ended with the victim dead.
- Downer Beginning: At the start of the episode, the APD, SWAT and 126 firefighters investigate a possible domestic abuse case where a drug dealer, Mark Poling, is attacking his girlfriend and infant child, but immediately find no one there. Carlos then finds Mark running and high, but inadvertently kills him while bringing him into custody; this leaves him and Grace devastated.
- Holding in Laughter: Carlos when Grace delivers the below-mentioned Ironic Echo.
- Ironic Echo: After the swatter is arrested, Grace calls it "God's plan", which was the culprit's catchphrase whenever he played.
- It's All My Fault: Grace briefly feels this way for not picking up on indicators of the swatting call, then pulls herself together to defy this. She then visits Carlos and similarly tells him that he isn’t, and shouldn’t feel, responsible for Mark’s death.
- Mistaken for Terrorist: A young man who delivered Catherine’s flowers and the powder-filled “toxic” note is initially thought to be responsible for the “bio-attack” on the Capitol. When he ends up fainting with a nosebleed as well, this is quickly disproven.
- My God, What Have I Done?: Immediately as Carlos goes to Mark to handcuff him, he’s shaken to see that tasering him caused him to accidentally fall on the knife he was brandishing and stab himself.
- Noodle Incident: Apparently, Judd once threw his XBox controller through the TV screen. He passes it off as his wrist slipping.
- Pop-Cultural Osmosis Failure: Carlos, having never played video games or heard of live streaming, frequently has to have the world of video game streaming explained to him during his and Grace’s investigation.
- Working Out Their Emotions: Carlos gives himself a boxing session to work through the events of the swatting call; though he insists it isn’t, TK calls it “rage-punching”.
