Nightmare Fuel / A Million Little Things

Season 1

• One of the factors leading to Jon's suicide was the fact that his best friend since college had been a victim of the hijacking of Flight 11.

Season 2

• "The Kiss": Gary punches the car of a guy who almost runs him over. When the guy stops and gets out of the car, Gary taunts him until the man pulls a gun at him. Fortunately, he doesn't shoot him.
• A racial one for Rome in "We're the Howards". He is at a softball game where he is perfectly aware that he is the ONLY black man. While he is recording Sophie playing for his adoption video, a paranoid father thinks Rome is an ephebophile recording his daughters. He accosts Rome. Gary shows up, punches the guy, and it soon leads to Rome in the back of a police car with Gary.

Season 3

• "Trust Me": Peter Benoit, a music professor who grooms his female prodigies.
• "United Front": Sophie discovers that she was not the only student Peter abused.

Season 4

• "Six Months Later" ends with Maggie learning she has a stalker.
• "Piece Of Cake": Theo finds Katherine passed out in the kitchen.