Maggie is interviewed by the news about the apparent Guardian murders in episode 2x07 "The Darkest Place".
James returns to the van after another bit of vigilanting and he apologizes to Winn and brings Lyra back onto the team in episode 2x18 "Ace Reporter".
Kara finds Lillian and agrees to team up to rescue Lena in episode 2x21 "Resist".
Manchester Black accompanies a very drunk Officer Petrocelli out of the bar and learns about an upcoming anti-alien attack in episode 4x04 "Ahimsa".
The blast of purple energy hits the RV that houses, Jerry, his sister Bobbi, and his drug dealing buddy Kevin turning their supply purple in episode 4x11 "Blood Memory".
The Elite livestream a video from a secret mercenary base where the mercenaries were torturing aliens announcing their murderous manifesto in episode 4x13 "What's So Funny About Truth, Justice, and the American Way?".
Otis drops Mikhail off somewhere safe and warns him to stay away from bald men in episode 4x16 "The House of L".