The team's goodbyes when Dr. Rosen leaves for D.C. seem unusually heartfelt, until we find out what he doeswhen he gets there. Given the government's treatment of Alphas up to that point, odds are good it was the last time they would ever see him.
Subverted in the Season 2 opener when Bill complains that Rosen kept them in the dark.
Fridge Horror: Apparently this isn't the first time Kat's gone back to Dylan. And this isn't the first time he's used her once he found out what she can do. And he didn't care if she found out, since in another month or so she won't even remember being used and will just come back to him again. Kat's situation is disturbingly reminiscent of Leonard's in Memento: how many nefarious people have used her in the past, and she doesn't even remember? Is she responsible for crimes that she can't remember committing?
Fridge Brilliance: In the season 2 opener we see that Rachel has one of those Dyson bladeless fans, and is in pain from all the noises (apparently her sensitivity spiked). The fans make no sound.
More Fridge Horror in the season 2 finale The lights go and kill/knockout everything in the area. Including StantonParish. If he was a nigh invulnerable immortal before, imagine what he'll be now?.
Fridge Brilliance: Stanton Parish's plan for Rosen is almost Classical in its theme, and very in-keeping with his Warrior Poet mentality. He wants Rosen to lead his brave new world of Alphas precisely because Rosen isn't one. He sees Rosen as a Cincinnatus figure: the ordinary man with good intentions and no real desire for power - and therefore the only man to be trusted with such power. It's also a classic Comic Book situation: the Badass Normal is the best leader for superheroes.
Fridge Horror: At first, this troper was unsure why Rachel seemed especially reluctant to forgive Nina after the events of "When Push Comes to Shove." Then she realized—because Rachel's abilities cause even a kiss to feel as strong and sensual as sex, that would be exactly what it felt like when she was pushed into kissing Nina. Against her will. Nina raped Rachel.
Fridge Brilliance: When Dylan tells Kat that he met her when she was doing 'that knife between the fingers thing' and shows her the knife she apparently used, Kat slowly puts the knife between her splayed fingers while listening, then gradually goes faster and harder. It looks completely normal - until you realize that if Dylan's story was true and she had done that before, she should be able to perform it flawlessly and instantly. The fact that she's obviously unfamiliar with the trick serves as a brilliant piece of Foreshadowing.