Hiccup and Astrid have long since realized that they don't quite agree on how their daughter should be raised. They both want what's best for her, but what would that be? She, however, has figured that out for herself and is intent on keeping her secret life away from disapproving eyes. It's going well, until a mysterious new rider arrives on Berk, and everything falls apart.
Government surveillance is just a thing right? It always has been, and it always will be, and there's nothing wrong with that, right? Hiro isn't so sure anymore. Yeah, it can be a little annoying at times, but is he really going to give up everything he's ever known to fight it? Apparently, yes.