Happy Independence Day, Guest!
There was the biker gangs, Dogs of Hell from Agents of Shield ( and then Daredvil season 2.)I'm struggling to think of many MCU connections. I can't even recall any references to 'the incident' that the Netflix shows seem so fond of.
Found it. In Season 2 of AoS, Skye says:
One of my sources, Micro, hes kind of a crime scene junkie.
http://marvelcinematicuniverse.wikia.com/wiki/Micro
[YT]X2qQOOMy3ss[/YT]
at 7:00 he talks about the news broadcast that is the same one from age of ultron...I always like to hear that there's at least some type of connection between the Netflix shows and the movies. I just wish we'd get more of those.