When I was young, approximately 1998–2001, I watched the original Digimon Adventure. I also later (approximately 2003) watched Digimon Tamers, but I never did watch more than a few episodes of Digimon Adventure 02.
For nostalgia's sake, I'm interested in Digimon Tri, but I have no interest right now in going back to watch Digimon Adventure 02, since it's really long and only available as an unfaithful dub. I know basically who the characters are, but I don't know any of the main plot arcs. Will I be able to understand Digimon Tri without this knowledge?